20453140

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14009}}^1$

素因数の和:14091

約数の個数: 24

約数和(自身を含む): 43543080

約数和(自身を除く): 23089940

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14009, 28018, 56036, 70045, 140090, 280180, 1022657, 2045314, 4090628, 5113285, 10226570, 20453140]

約数ペア:

[(1, 20453140), (2, 10226570), (4, 5113285), (5, 4090628), (10, 2045314), (20, 1022657), (73, 280180), (146, 140090), (292, 70045), (365, 56036), (730, 28018), (1460, 14009)]