20121970940

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1901}}^1\times {\mathrm{3371}}^1$

素因数の和:5438

約数の個数: 48

約数和(自身を含む): 42560277984

約数和(自身を除く): 22438307044

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 1901, 3140, 3371, 3802, 6742, 7604, 9505, 13484, 16855, 19010, 33710, 38020, 67420, 298457, 529247, 596914, 1058494, 1193828, 1492285, 2116988, 2646235, 2984570, 5292470, 5969140, 6408271, 10584940, 12816542, 25633084, 32041355, 64082710, 128165420, 1006098547, 2012197094, 4024394188, 5030492735, 10060985470, 20121970940]

約数ペア:

[(1, 20121970940), (2, 10060985470), (4, 5030492735), (5, 4024394188), (10, 2012197094), (20, 1006098547), (157, 128165420), (314, 64082710), (628, 32041355), (785, 25633084), (1570, 12816542), (1901, 10584940), (3140, 6408271), (3371, 5969140), (3802, 5292470), (6742, 2984570), (7604, 2646235), (9505, 2116988), (13484, 1492285), (16855, 1193828), (19010, 1058494), (33710, 596914), (38020, 529247), (67420, 298457)]