420965275

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{3001}}^1$

素因数の和:3223

約数の個数: 24

約数和(自身を含む): 541993088

約数和(自身を除く): 121027813

約数列:

[1, 5, 25, 31, 155, 181, 775, 905, 3001, 4525, 5611, 15005, 28055, 75025, 93031, 140275, 465155, 543181, 2325775, 2715905, 13579525, 16838611, 84193055, 420965275]

約数ペア:

[(1, 420965275), (5, 84193055), (25, 16838611), (31, 13579525), (155, 2715905), (181, 2325775), (775, 543181), (905, 465155), (3001, 140275), (4525, 93031), (5611, 75025), (15005, 28055)]