19605820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75407}}^1$

素因数の和:75429

約数の個数: 24

約数和(自身を含む): 44339904

約数和(自身を除く): 24734084

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 75407, 150814, 301628, 377035, 754070, 980291, 1508140, 1960582, 3921164, 4901455, 9802910, 19605820]

約数ペア:

[(1, 19605820), (2, 9802910), (4, 4901455), (5, 3921164), (10, 1960582), (13, 1508140), (20, 980291), (26, 754070), (52, 377035), (65, 301628), (130, 150814), (260, 75407)]