80001025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3467}}^1$

素因数の和:3561

約数の個数: 24

約数和(自身を含む): 108368064

約数和(自身を除く): 28367039

約数列:

[1, 5, 13, 25, 65, 71, 325, 355, 923, 1775, 3467, 4615, 17335, 23075, 45071, 86675, 225355, 246157, 1126775, 1230785, 3200041, 6153925, 16000205, 80001025]

約数ペア:

[(1, 80001025), (5, 16000205), (13, 6153925), (25, 3200041), (65, 1230785), (71, 1126775), (325, 246157), (355, 225355), (923, 86675), (1775, 45071), (3467, 23075), (4615, 17335)]