51678640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:159

約数の個数: 160

約数和(自身を含む): 142490880

約数和(自身を除く): 90812240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 37, 40, 52, 65, 68, 74, 79, 80, 85, 104, 130, 136, 148, 158, 170, 185, 208, 221, 260, 272, 296, 316, 340, 370, 395, 442, 481, 520, 592, 629, 632, 680, 740, 790, 884, 962, 1027, 1040, 1105, 1258, 1264, 1343, 1360, 1480, 1580, 1768, 1924, 2054, 2210, 2405, 2516, 2686, 2923, 2960, 3145, 3160, 3536, 3848, 4108, 4420, 4810, 5032, 5135, 5372, 5846, 6290, 6320, 6715, 7696, 8177, 8216, 8840, 9620, 10064, 10270, 10744, 11692, 12580, 13430, 14615, 16354, 16432, 17459, 17680, 19240, 20540, 21488, 23384, 25160, 26860, 29230, 32708, 34918, 37999, 38480, 40885, 41080, 46768, 49691, 50320, 53720, 58460, 65416, 69836, 75998, 81770, 82160, 87295, 99382, 107440, 116920, 130832, 139672, 151996, 163540, 174590, 189995, 198764, 233840, 248455, 279344, 303992, 327080, 349180, 379990, 397528, 496910, 607984, 645983, 654160, 698360, 759980, 795056, 993820, 1291966, 1396720, 1519960, 1987640, 2583932, 3039920, 3229915, 3975280, 5167864, 6459830, 10335728, 12919660, 25839320, 51678640]

約数ペア:

[(1, 51678640), (2, 25839320), (4, 12919660), (5, 10335728), (8, 6459830), (10, 5167864), (13, 3975280), (16, 3229915), (17, 3039920), (20, 2583932), (26, 1987640), (34, 1519960), (37, 1396720), (40, 1291966), (52, 993820), (65, 795056), (68, 759980), (74, 698360), (79, 654160), (80, 645983), (85, 607984), (104, 496910), (130, 397528), (136, 379990), (148, 349180), (158, 327080), (170, 303992), (185, 279344), (208, 248455), (221, 233840), (260, 198764), (272, 189995), (296, 174590), (316, 163540), (340, 151996), (370, 139672), (395, 130832), (442, 116920), (481, 107440), (520, 99382), (592, 87295), (629, 82160), (632, 81770), (680, 75998), (740, 69836), (790, 65416), (884, 58460), (962, 53720), (1027, 50320), (1040, 49691), (1105, 46768), (1258, 41080), (1264, 40885), (1343, 38480), (1360, 37999), (1480, 34918), (1580, 32708), (1768, 29230), (1924, 26860), (2054, 25160), (2210, 23384), (2405, 21488), (2516, 20540), (2686, 19240), (2923, 17680), (2960, 17459), (3145, 16432), (3160, 16354), (3536, 14615), (3848, 13430), (4108, 12580), (4420, 11692), (4810, 10744), (5032, 10270), (5135, 10064), (5372, 9620), (5846, 8840), (6290, 8216), (6320, 8177), (6715, 7696)]