12764375

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{1571}}^1$

素因数の和:1604

約数の個数: 20

約数和(自身を含む): 17188248

約数和(自身を除く): 4423873

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1571, 1625, 7855, 8125, 20423, 39275, 102115, 196375, 510575, 981875, 2552875, 12764375]

約数ペア:

[(1, 12764375), (5, 2552875), (13, 981875), (25, 510575), (65, 196375), (125, 102115), (325, 39275), (625, 20423), (1571, 8125), (1625, 7855)]