20515690525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{8423}}^1$

素因数の和:8982

約数の個数: 48

約数和(自身を含む): 29444508288

約数和(自身を除く): 8928817763

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 521, 935, 2605, 4675, 5731, 8423, 8857, 13025, 28655, 42115, 44285, 92653, 97427, 143191, 143275, 210575, 221425, 463265, 487135, 715955, 1575101, 2316325, 2435675, 3579775, 4388383, 7875505, 21941915, 39377525, 48272213, 74602511, 109709575, 241361065, 373012555, 820627621, 1206805325, 1865062775, 4103138105, 20515690525]

約数ペア:

[(1, 20515690525), (5, 4103138105), (11, 1865062775), (17, 1206805325), (25, 820627621), (55, 373012555), (85, 241361065), (187, 109709575), (275, 74602511), (425, 48272213), (521, 39377525), (935, 21941915), (2605, 7875505), (4675, 4388383), (5731, 3579775), (8423, 2435675), (8857, 2316325), (13025, 1575101), (28655, 715955), (42115, 487135), (44285, 463265), (92653, 221425), (97427, 210575), (143191, 143275)]