20139840025

素因数分解:

$5^2\times {\mathrm{83}}^1\times {\mathrm{9705947}}^1$

素因数の和:9706040

約数の個数: 12

約数和(自身を含む): 25274288592

約数和(自身を除く): 5134448567

約数列:

[1, 5, 25, 83, 415, 2075, 9705947, 48529735, 242648675, 805593601, 4027968005, 20139840025]

約数ペア:

[(1, 20139840025), (5, 4027968005), (25, 805593601), (83, 242648675), (415, 48529735), (2075, 9705947)]