20964048840

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{2657}}^1$

素因数の和:2813

約数の個数: 384

約数和(自身を含む): 81204664320

約数和(自身を除く): 60240615480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 56, 60, 62, 63, 70, 72, 84, 90, 93, 101, 105, 120, 124, 126, 140, 155, 168, 180, 186, 202, 210, 217, 248, 252, 279, 280, 303, 310, 315, 360, 372, 404, 420, 434, 465, 504, 505, 558, 606, 620, 630, 651, 707, 744, 808, 840, 868, 909, 930, 1010, 1085, 1116, 1212, 1240, 1260, 1302, 1395, 1414, 1515, 1736, 1818, 1860, 1953, 2020, 2121, 2170, 2232, 2424, 2520, 2604, 2657, 2790, 2828, 3030, 3131, 3255, 3535, 3636, 3720, 3906, 4040, 4242, 4340, 4545, 5208, 5314, 5580, 5656, 6060, 6262, 6363, 6510, 7070, 7272, 7812, 7971, 8484, 8680, 9090, 9393, 9765, 10605, 10628, 11160, 12120, 12524, 12726, 13020, 13285, 14140, 15624, 15655, 15942, 16968, 18180, 18599, 18786, 19530, 21210, 21256, 21917, 23913, 25048, 25452, 26040, 26570, 28179, 28280, 31310, 31815, 31884, 36360, 37198, 37572, 39060, 39855, 42420, 43834, 46965, 47826, 50904, 53140, 55797, 56358, 62620, 63630, 63768, 65751, 74396, 75144, 78120, 79710, 82367, 84840, 87668, 92995, 93930, 95652, 106280, 109585, 111594, 112716, 119565, 125240, 127260, 131502, 140895, 148792, 159420, 164734, 167391, 175336, 185990, 187860, 191304, 197253, 219170, 223188, 225432, 239130, 247101, 254520, 263004, 268357, 278985, 281790, 318840, 328755, 329468, 334782, 371980, 375720, 394506, 411835, 438340, 446376, 478260, 494202, 526008, 536714, 557970, 563580, 576569, 657510, 658936, 669564, 741303, 743960, 789012, 805071, 823670, 836955, 876680, 956520, 986265, 988404, 1073428, 1115940, 1127160, 1153138, 1235505, 1315020, 1339128, 1341785, 1482606, 1578024, 1610142, 1647340, 1673910, 1729707, 1878499, 1972530, 1976808, 2146856, 2231880, 2306276, 2415213, 2471010, 2630040, 2683570, 2882845, 2965212, 3220284, 3294680, 3347820, 3459414, 3706515, 3756998, 3945060, 4025355, 4612552, 4830426, 4942020, 5189121, 5367140, 5635497, 5765690, 5930424, 6440568, 6695640, 6918828, 7413030, 7513996, 7890120, 8050710, 8319067, 8648535, 9392495, 9660852, 9884040, 10378242, 10734280, 11270994, 11531380, 12076065, 13837656, 14826060, 15027992, 16101420, 16638134, 16906491, 17297070, 18784990, 19321704, 20756484, 22541988, 23062760, 24152130, 24957201, 25945605, 28177485, 29652120, 32202840, 33276268, 33812982, 34594140, 37569980, 41512968, 41595335, 45083976, 48304260, 49914402, 51891210, 56354970, 58233469, 66552536, 67625964, 69188280, 74871603, 75139960, 83190670, 84532455, 96608520, 99828804, 103782420, 112709940, 116466938, 124786005, 135251928, 149743206, 166381340, 169064910, 174700407, 199657608, 207564840, 225419880, 232933876, 249572010, 291167345, 299486412, 332762680, 338129820, 349400814, 374358015, 465867752, 499144020, 524101221, 582334690, 598972824, 676259640, 698801628, 748716030, 873502035, 998288040, 1048202442, 1164669380, 1397603256, 1497432060, 1747004070, 2096404884, 2329338760, 2620506105, 2994864120, 3494008140, 4192809768, 5241012210, 6988016280, 10482024420, 20964048840]

約数ペア:

[(1, 20964048840), (2, 10482024420), (3, 6988016280), (4, 5241012210), (5, 4192809768), (6, 3494008140), (7, 2994864120), (8, 2620506105), (9, 2329338760), (10, 2096404884), (12, 1747004070), (14, 1497432060), (15, 1397603256), (18, 1164669380), (20, 1048202442), (21, 998288040), (24, 873502035), (28, 748716030), (30, 698801628), (31, 676259640), (35, 598972824), (36, 582334690), (40, 524101221), (42, 499144020), (45, 465867752), (56, 374358015), (60, 349400814), (62, 338129820), (63, 332762680), (70, 299486412), (72, 291167345), (84, 249572010), (90, 232933876), (93, 225419880), (101, 207564840), (105, 199657608), (120, 174700407), (124, 169064910), (126, 166381340), (140, 149743206), (155, 135251928), (168, 124786005), (180, 116466938), (186, 112709940), (202, 103782420), (210, 99828804), (217, 96608520), (248, 84532455), (252, 83190670), (279, 75139960), (280, 74871603), (303, 69188280), (310, 67625964), (315, 66552536), (360, 58233469), (372, 56354970), (404, 51891210), (420, 49914402), (434, 48304260), (465, 45083976), (504, 41595335), (505, 41512968), (558, 37569980), (606, 34594140), (620, 33812982), (630, 33276268), (651, 32202840), (707, 29652120), (744, 28177485), (808, 25945605), (840, 24957201), (868, 24152130), (909, 23062760), (930, 22541988), (1010, 20756484), (1085, 19321704), (1116, 18784990), (1212, 17297070), (1240, 16906491), (1260, 16638134), (1302, 16101420), (1395, 15027992), (1414, 14826060), (1515, 13837656), (1736, 12076065), (1818, 11531380), (1860, 11270994), (1953, 10734280), (2020, 10378242), (2121, 9884040), (2170, 9660852), (2232, 9392495), (2424, 8648535), (2520, 8319067), (2604, 8050710), (2657, 7890120), (2790, 7513996), (2828, 7413030), (3030, 6918828), (3131, 6695640), (3255, 6440568), (3535, 5930424), (3636, 5765690), (3720, 5635497), (3906, 5367140), (4040, 5189121), (4242, 4942020), (4340, 4830426), (4545, 4612552), (5208, 4025355), (5314, 3945060), (5580, 3756998), (5656, 3706515), (6060, 3459414), (6262, 3347820), (6363, 3294680), (6510, 3220284), (7070, 2965212), (7272, 2882845), (7812, 2683570), (7971, 2630040), (8484, 2471010), (8680, 2415213), (9090, 2306276), (9393, 2231880), (9765, 2146856), (10605, 1976808), (10628, 1972530), (11160, 1878499), (12120, 1729707), (12524, 1673910), (12726, 1647340), (13020, 1610142), (13285, 1578024), (14140, 1482606), (15624, 1341785), (15655, 1339128), (15942, 1315020), (16968, 1235505), (18180, 1153138), (18599, 1127160), (18786, 1115940), (19530, 1073428), (21210, 988404), (21256, 986265), (21917, 956520), (23913, 876680), (25048, 836955), (25452, 823670), (26040, 805071), (26570, 789012), (28179, 743960), (28280, 741303), (31310, 669564), (31815, 658936), (31884, 657510), (36360, 576569), (37198, 563580), (37572, 557970), (39060, 536714), (39855, 526008), (42420, 494202), (43834, 478260), (46965, 446376), (47826, 438340), (50904, 411835), (53140, 394506), (55797, 375720), (56358, 371980), (62620, 334782), (63630, 329468), (63768, 328755), (65751, 318840), (74396, 281790), (75144, 278985), (78120, 268357), (79710, 263004), (82367, 254520), (84840, 247101), (87668, 239130), (92995, 225432), (93930, 223188), (95652, 219170), (106280, 197253), (109585, 191304), (111594, 187860), (112716, 185990), (119565, 175336), (125240, 167391), (127260, 164734), (131502, 159420), (140895, 148792)]