81479160

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:211

約数の個数: 288

約数和(自身を含む): 320112000

約数和(自身を除く): 238632840

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, 49, 56, 60, 62, 63, 70, 72, 84, 90, 93, 98, 105, 120, 124, 126, 140, 147, 149, 155, 168, 180, 186, 196, 210, 217, 245, 248, 252, 279, 280, 294, 298, 310, 315, 360, 372, 392, 420, 434, 441, 447, 465, 490, 504, 558, 588, 596, 620, 630, 651, 735, 744, 745, 840, 868, 882, 894, 930, 980, 1043, 1085, 1116, 1176, 1192, 1240, 1260, 1302, 1341, 1395, 1470, 1490, 1519, 1736, 1764, 1788, 1860, 1953, 1960, 2086, 2170, 2205, 2232, 2235, 2520, 2604, 2682, 2790, 2940, 2980, 3038, 3129, 3255, 3528, 3576, 3720, 3906, 4172, 4340, 4410, 4470, 4557, 4619, 5208, 5215, 5364, 5580, 5880, 5960, 6076, 6258, 6510, 6705, 7301, 7595, 7812, 8344, 8680, 8820, 8940, 9114, 9238, 9387, 9765, 10430, 10728, 11160, 12152, 12516, 13020, 13410, 13671, 13857, 14602, 15190, 15624, 15645, 17640, 17880, 18228, 18476, 18774, 19530, 20860, 21903, 22785, 23095, 25032, 26040, 26820, 27342, 27714, 29204, 30380, 31290, 32333, 36456, 36505, 36952, 37548, 39060, 41571, 41720, 43806, 45570, 46190, 46935, 53640, 54684, 55428, 58408, 60760, 62580, 64666, 65709, 68355, 69285, 73010, 75096, 78120, 83142, 87612, 91140, 92380, 93870, 96999, 109368, 109515, 110856, 125160, 129332, 131418, 136710, 138570, 146020, 161665, 166284, 175224, 182280, 184760, 187740, 193998, 207855, 219030, 226331, 258664, 262836, 273420, 277140, 290997, 292040, 323330, 328545, 332568, 375480, 387996, 415710, 438060, 452662, 484995, 525672, 546840, 554280, 581994, 646660, 657090, 678993, 775992, 831420, 876120, 905324, 969990, 1131655, 1163988, 1293320, 1314180, 1357986, 1454985, 1662840, 1810648, 1939980, 2036979, 2263310, 2327976, 2628360, 2715972, 2909970, 3394965, 3879960, 4073958, 4526620, 5431944, 5819940, 6789930, 8147916, 9053240, 10184895, 11639880, 13579860, 16295832, 20369790, 27159720, 40739580, 81479160]

約数ペア:

[(1, 81479160), (2, 40739580), (3, 27159720), (4, 20369790), (5, 16295832), (6, 13579860), (7, 11639880), (8, 10184895), (9, 9053240), (10, 8147916), (12, 6789930), (14, 5819940), (15, 5431944), (18, 4526620), (20, 4073958), (21, 3879960), (24, 3394965), (28, 2909970), (30, 2715972), (31, 2628360), (35, 2327976), (36, 2263310), (40, 2036979), (42, 1939980), (45, 1810648), (49, 1662840), (56, 1454985), (60, 1357986), (62, 1314180), (63, 1293320), (70, 1163988), (72, 1131655), (84, 969990), (90, 905324), (93, 876120), (98, 831420), (105, 775992), (120, 678993), (124, 657090), (126, 646660), (140, 581994), (147, 554280), (149, 546840), (155, 525672), (168, 484995), (180, 452662), (186, 438060), (196, 415710), (210, 387996), (217, 375480), (245, 332568), (248, 328545), (252, 323330), (279, 292040), (280, 290997), (294, 277140), (298, 273420), (310, 262836), (315, 258664), (360, 226331), (372, 219030), (392, 207855), (420, 193998), (434, 187740), (441, 184760), (447, 182280), (465, 175224), (490, 166284), (504, 161665), (558, 146020), (588, 138570), (596, 136710), (620, 131418), (630, 129332), (651, 125160), (735, 110856), (744, 109515), (745, 109368), (840, 96999), (868, 93870), (882, 92380), (894, 91140), (930, 87612), (980, 83142), (1043, 78120), (1085, 75096), (1116, 73010), (1176, 69285), (1192, 68355), (1240, 65709), (1260, 64666), (1302, 62580), (1341, 60760), (1395, 58408), (1470, 55428), (1490, 54684), (1519, 53640), (1736, 46935), (1764, 46190), (1788, 45570), (1860, 43806), (1953, 41720), (1960, 41571), (2086, 39060), (2170, 37548), (2205, 36952), (2232, 36505), (2235, 36456), (2520, 32333), (2604, 31290), (2682, 30380), (2790, 29204), (2940, 27714), (2980, 27342), (3038, 26820), (3129, 26040), (3255, 25032), (3528, 23095), (3576, 22785), (3720, 21903), (3906, 20860), (4172, 19530), (4340, 18774), (4410, 18476), (4470, 18228), (4557, 17880), (4619, 17640), (5208, 15645), (5215, 15624), (5364, 15190), (5580, 14602), (5880, 13857), (5960, 13671), (6076, 13410), (6258, 13020), (6510, 12516), (6705, 12152), (7301, 11160), (7595, 10728), (7812, 10430), (8344, 9765), (8680, 9387), (8820, 9238), (8940, 9114)]