20121060980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{977}}^1\times {\mathrm{19429}}^1$

素因数の和:20468

約数の個数: 48

約数和(自身を含む): 43097760720

約数和(自身を除く): 22976699740

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 977, 1060, 1954, 3908, 4885, 9770, 19429, 19540, 38858, 51781, 77716, 97145, 103562, 194290, 207124, 258905, 388580, 517810, 1029737, 1035620, 2059474, 4118948, 5148685, 10297370, 18982133, 20594740, 37964266, 75928532, 94910665, 189821330, 379642660, 1006053049, 2012106098, 4024212196, 5030265245, 10060530490, 20121060980]

約数ペア:

[(1, 20121060980), (2, 10060530490), (4, 5030265245), (5, 4024212196), (10, 2012106098), (20, 1006053049), (53, 379642660), (106, 189821330), (212, 94910665), (265, 75928532), (530, 37964266), (977, 20594740), (1060, 18982133), (1954, 10297370), (3908, 5148685), (4885, 4118948), (9770, 2059474), (19429, 1035620), (19540, 1029737), (38858, 517810), (51781, 388580), (77716, 258905), (97145, 207124), (103562, 194290)]