3891875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{479}}^1$

素因数の和:512

約数の個数: 20

約数和(自身を含む): 5248320

約数和(自身を除く): 1356445

約数列:

[1, 5, 13, 25, 65, 125, 325, 479, 625, 1625, 2395, 6227, 8125, 11975, 31135, 59875, 155675, 299375, 778375, 3891875]

約数ペア:

[(1, 3891875), (5, 778375), (13, 299375), (25, 155675), (65, 59875), (125, 31135), (325, 11975), (479, 8125), (625, 6227), (1625, 2395)]