381301925

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{809}}^1\times {\mathrm{1109}}^1$

素因数の和:1945

約数の個数: 24

約数和(自身を含む): 501697800

約数和(自身を除く): 120395875

約数列:

[1, 5, 17, 25, 85, 425, 809, 1109, 4045, 5545, 13753, 18853, 20225, 27725, 68765, 94265, 343825, 471325, 897181, 4485905, 15252077, 22429525, 76260385, 381301925]

約数ペア:

[(1, 381301925), (5, 76260385), (17, 22429525), (25, 15252077), (85, 4485905), (425, 897181), (809, 471325), (1109, 343825), (4045, 94265), (5545, 68765), (13753, 27725), (18853, 20225)]