20876375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{443}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 29090880

約数和(自身を除く): 8214505

約数列:

[1, 5, 13, 25, 29, 65, 125, 145, 325, 377, 443, 725, 1625, 1885, 2215, 3625, 5759, 9425, 11075, 12847, 28795, 47125, 55375, 64235, 143975, 167011, 321175, 719875, 835055, 1605875, 4175275, 20876375]

約数ペア:

[(1, 20876375), (5, 4175275), (13, 1605875), (25, 835055), (29, 719875), (65, 321175), (125, 167011), (145, 143975), (325, 64235), (377, 55375), (443, 47125), (725, 28795), (1625, 12847), (1885, 11075), (2215, 9425), (3625, 5759)]