20906470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2203}}^1$

素因数の和:2296

約数の個数: 32

約数和(自身を含む): 41100192

約数和(自身を除く): 20193722

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 365, 730, 949, 1898, 2203, 4406, 4745, 9490, 11015, 22030, 28639, 57278, 143195, 160819, 286390, 321638, 804095, 1608190, 2090647, 4181294, 10453235, 20906470]

約数ペア:

[(1, 20906470), (2, 10453235), (5, 4181294), (10, 2090647), (13, 1608190), (26, 804095), (65, 321638), (73, 286390), (130, 160819), (146, 143195), (365, 57278), (730, 28639), (949, 22030), (1898, 11015), (2203, 9490), (4406, 4745)]