257561640

素因数分解:

$2^3\times 3^3\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 384

約数和(自身を含む): 1037491200

約数和(自身を除く): 779929560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 31, 35, 36, 40, 42, 45, 49, 54, 56, 60, 62, 63, 70, 72, 84, 90, 93, 98, 105, 108, 120, 124, 126, 135, 140, 147, 155, 157, 168, 180, 186, 189, 196, 210, 216, 217, 245, 248, 252, 270, 279, 280, 294, 310, 314, 315, 360, 372, 378, 392, 420, 434, 441, 465, 471, 490, 504, 540, 558, 588, 620, 628, 630, 651, 735, 744, 756, 785, 837, 840, 868, 882, 930, 942, 945, 980, 1080, 1085, 1099, 1116, 1176, 1240, 1256, 1260, 1302, 1323, 1395, 1413, 1470, 1512, 1519, 1570, 1674, 1736, 1764, 1860, 1884, 1890, 1953, 1960, 2170, 2198, 2205, 2232, 2355, 2520, 2604, 2646, 2790, 2826, 2940, 3038, 3140, 3255, 3297, 3348, 3528, 3720, 3768, 3780, 3906, 4185, 4239, 4340, 4396, 4410, 4557, 4710, 4867, 5208, 5292, 5495, 5580, 5652, 5859, 5880, 6076, 6280, 6510, 6594, 6615, 6696, 7065, 7560, 7595, 7693, 7812, 8370, 8478, 8680, 8792, 8820, 9114, 9420, 9734, 9765, 9891, 10584, 10990, 11160, 11304, 11718, 12152, 13020, 13188, 13230, 13671, 14130, 14601, 15190, 15386, 15624, 16485, 16740, 16956, 17640, 18228, 18840, 19468, 19530, 19782, 21195, 21980, 22785, 23079, 23436, 24335, 26040, 26376, 26460, 27342, 28260, 29202, 29295, 29673, 30380, 30772, 32970, 33480, 33912, 34069, 36456, 38465, 38936, 39060, 39564, 41013, 42390, 43803, 43960, 45570, 46158, 46872, 48670, 49455, 52920, 54684, 56520, 58404, 58590, 59346, 60760, 61544, 65940, 68138, 68355, 69237, 73005, 76930, 78120, 79128, 82026, 84780, 87606, 91140, 92316, 97340, 98910, 102207, 109368, 115395, 116808, 117180, 118692, 131409, 131880, 136276, 136710, 138474, 146010, 148365, 153860, 164052, 169560, 170345, 175212, 182280, 184632, 194680, 197820, 204414, 205065, 207711, 219015, 230790, 234360, 237384, 238483, 262818, 272552, 273420, 276948, 292020, 296730, 306621, 307720, 328104, 340690, 346185, 350424, 395640, 408828, 410130, 415422, 438030, 461580, 476966, 511035, 525636, 546840, 553896, 584040, 593460, 613242, 657045, 681380, 692370, 715449, 817656, 820260, 830844, 876060, 919863, 923160, 953932, 1022070, 1038555, 1051272, 1186920, 1192415, 1226484, 1314090, 1362760, 1384740, 1430898, 1533105, 1640520, 1661688, 1752120, 1839726, 1907864, 2044140, 2077110, 2146347, 2384830, 2452968, 2628180, 2769480, 2861796, 3066210, 3577245, 3679452, 4088280, 4154220, 4292694, 4599315, 4769660, 5256360, 5723592, 6132420, 6439041, 7154490, 7358904, 8308440, 8585388, 9198630, 9539320, 10731735, 12264840, 12878082, 14308980, 17170776, 18397260, 21463470, 25756164, 28617960, 32195205, 36794520, 42926940, 51512328, 64390410, 85853880, 128780820, 257561640]

約数ペア:

[(1, 257561640), (2, 128780820), (3, 85853880), (4, 64390410), (5, 51512328), (6, 42926940), (7, 36794520), (8, 32195205), (9, 28617960), (10, 25756164), (12, 21463470), (14, 18397260), (15, 17170776), (18, 14308980), (20, 12878082), (21, 12264840), (24, 10731735), (27, 9539320), (28, 9198630), (30, 8585388), (31, 8308440), (35, 7358904), (36, 7154490), (40, 6439041), (42, 6132420), (45, 5723592), (49, 5256360), (54, 4769660), (56, 4599315), (60, 4292694), (62, 4154220), (63, 4088280), (70, 3679452), (72, 3577245), (84, 3066210), (90, 2861796), (93, 2769480), (98, 2628180), (105, 2452968), (108, 2384830), (120, 2146347), (124, 2077110), (126, 2044140), (135, 1907864), (140, 1839726), (147, 1752120), (155, 1661688), (157, 1640520), (168, 1533105), (180, 1430898), (186, 1384740), (189, 1362760), (196, 1314090), (210, 1226484), (216, 1192415), (217, 1186920), (245, 1051272), (248, 1038555), (252, 1022070), (270, 953932), (279, 923160), (280, 919863), (294, 876060), (310, 830844), (314, 820260), (315, 817656), (360, 715449), (372, 692370), (378, 681380), (392, 657045), (420, 613242), (434, 593460), (441, 584040), (465, 553896), (471, 546840), (490, 525636), (504, 511035), (540, 476966), (558, 461580), (588, 438030), (620, 415422), (628, 410130), (630, 408828), (651, 395640), (735, 350424), (744, 346185), (756, 340690), (785, 328104), (837, 307720), (840, 306621), (868, 296730), (882, 292020), (930, 276948), (942, 273420), (945, 272552), (980, 262818), (1080, 238483), (1085, 237384), (1099, 234360), (1116, 230790), (1176, 219015), (1240, 207711), (1256, 205065), (1260, 204414), (1302, 197820), (1323, 194680), (1395, 184632), (1413, 182280), (1470, 175212), (1512, 170345), (1519, 169560), (1570, 164052), (1674, 153860), (1736, 148365), (1764, 146010), (1860, 138474), (1884, 136710), (1890, 136276), (1953, 131880), (1960, 131409), (2170, 118692), (2198, 117180), (2205, 116808), (2232, 115395), (2355, 109368), (2520, 102207), (2604, 98910), (2646, 97340), (2790, 92316), (2826, 91140), (2940, 87606), (3038, 84780), (3140, 82026), (3255, 79128), (3297, 78120), (3348, 76930), (3528, 73005), (3720, 69237), (3768, 68355), (3780, 68138), (3906, 65940), (4185, 61544), (4239, 60760), (4340, 59346), (4396, 58590), (4410, 58404), (4557, 56520), (4710, 54684), (4867, 52920), (5208, 49455), (5292, 48670), (5495, 46872), (5580, 46158), (5652, 45570), (5859, 43960), (5880, 43803), (6076, 42390), (6280, 41013), (6510, 39564), (6594, 39060), (6615, 38936), (6696, 38465), (7065, 36456), (7560, 34069), (7595, 33912), (7693, 33480), (7812, 32970), (8370, 30772), (8478, 30380), (8680, 29673), (8792, 29295), (8820, 29202), (9114, 28260), (9420, 27342), (9734, 26460), (9765, 26376), (9891, 26040), (10584, 24335), (10990, 23436), (11160, 23079), (11304, 22785), (11718, 21980), (12152, 21195), (13020, 19782), (13188, 19530), (13230, 19468), (13671, 18840), (14130, 18228), (14601, 17640), (15190, 16956), (15386, 16740), (15624, 16485)]