20120337640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{58537}}^1$

素因数の和:59222

約数の個数: 64

約数和(自身を含む): 48827716560

約数和(自身を除く): 28707378920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 661, 1322, 2644, 3305, 5288, 6610, 8593, 13220, 17186, 26440, 34372, 42965, 58537, 68744, 85930, 117074, 171860, 234148, 292685, 343720, 468296, 585370, 760981, 1170740, 1521962, 2341480, 3043924, 3804905, 6087848, 7609810, 15219620, 30439240, 38692957, 77385914, 154771828, 193464785, 309543656, 386929570, 503008441, 773859140, 1006016882, 1547718280, 2012033764, 2515042205, 4024067528, 5030084410, 10060168820, 20120337640]

約数ペア:

[(1, 20120337640), (2, 10060168820), (4, 5030084410), (5, 4024067528), (8, 2515042205), (10, 2012033764), (13, 1547718280), (20, 1006016882), (26, 773859140), (40, 503008441), (52, 386929570), (65, 309543656), (104, 193464785), (130, 154771828), (260, 77385914), (520, 38692957), (661, 30439240), (1322, 15219620), (2644, 7609810), (3305, 6087848), (5288, 3804905), (6610, 3043924), (8593, 2341480), (13220, 1521962), (17186, 1170740), (26440, 760981), (34372, 585370), (42965, 468296), (58537, 343720), (68744, 292685), (85930, 234148), (117074, 171860)]