64881025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1801}}^1$

素因数の和:1953

約数の個数: 24

約数和(自身を含む): 88485408

約数和(自身を除く): 23604383

約数列:

[1, 5, 11, 25, 55, 131, 275, 655, 1441, 1801, 3275, 7205, 9005, 19811, 36025, 45025, 99055, 235931, 495275, 1179655, 2595241, 5898275, 12976205, 64881025]

約数ペア:

[(1, 64881025), (5, 12976205), (11, 5898275), (25, 2595241), (55, 1179655), (131, 495275), (275, 235931), (655, 99055), (1441, 45025), (1801, 36025), (3275, 19811), (7205, 9005)]