31212740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{120049}}^1$

素因数の和:120071

約数の個数: 24

約数和(自身を含む): 70589400

約数和(自身を除く): 39376660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 120049, 240098, 480196, 600245, 1200490, 1560637, 2400980, 3121274, 6242548, 7803185, 15606370, 31212740]

約数ペア:

[(1, 31212740), (2, 15606370), (4, 7803185), (5, 6242548), (10, 3121274), (13, 2400980), (20, 1560637), (26, 1200490), (52, 600245), (65, 480196), (130, 240098), (260, 120049)]