31061875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{3823}}^1$

素因数の和:3856

約数の個数: 20

約数和(自身を含む): 41811616

約数和(自身を除く): 10749741

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 3823, 8125, 19115, 49699, 95575, 248495, 477875, 1242475, 2389375, 6212375, 31061875]

約数ペア:

[(1, 31061875), (5, 6212375), (13, 2389375), (25, 1242475), (65, 477875), (125, 248495), (325, 95575), (625, 49699), (1625, 19115), (3823, 8125)]