20445250

素因数分解:

$2^1\times 5^3\times 7^2\times {\mathrm{1669}}^1$

素因数の和:1700

約数の個数: 48

約数和(自身を含む): 44548920

約数和(自身を除く): 24103670

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 125, 175, 245, 250, 350, 490, 875, 1225, 1669, 1750, 2450, 3338, 6125, 8345, 11683, 12250, 16690, 23366, 41725, 58415, 81781, 83450, 116830, 163562, 208625, 292075, 408905, 417250, 584150, 817810, 1460375, 2044525, 2920750, 4089050, 10222625, 20445250]

約数ペア:

[(1, 20445250), (2, 10222625), (5, 4089050), (7, 2920750), (10, 2044525), (14, 1460375), (25, 817810), (35, 584150), (49, 417250), (50, 408905), (70, 292075), (98, 208625), (125, 163562), (175, 116830), (245, 83450), (250, 81781), (350, 58415), (490, 41725), (875, 23366), (1225, 16690), (1669, 12250), (1750, 11683), (2450, 8345), (3338, 6125)]