20648186275

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{375251}}^1$

素因数の和:375363

約数の個数: 24

約数和(自身を含む): 26801998848

約数和(自身を除く): 6153812573

約数列:

[1, 5, 25, 31, 71, 155, 355, 775, 1775, 2201, 11005, 55025, 375251, 1876255, 9381275, 11632781, 26642821, 58163905, 133214105, 290819525, 666070525, 825927451, 4129637255, 20648186275]

約数ペア:

[(1, 20648186275), (5, 4129637255), (25, 825927451), (31, 666070525), (71, 290819525), (155, 133214105), (355, 58163905), (775, 26642821), (1775, 11632781), (2201, 9381275), (11005, 1876255), (55025, 375251)]