31810220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{122347}}^1$

素因数の和:122369

約数の個数: 24

約数和(自身を含む): 71940624

約数和(自身を除く): 40130404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 122347, 244694, 489388, 611735, 1223470, 1590511, 2446940, 3181022, 6362044, 7952555, 15905110, 31810220]

約数ペア:

[(1, 31810220), (2, 15905110), (4, 7952555), (5, 6362044), (10, 3181022), (13, 2446940), (20, 1590511), (26, 1223470), (52, 611735), (65, 489388), (130, 244694), (260, 122347)]