31213130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{240101}}^1$

素因数の和:240121

約数の個数: 16

約数和(自身を含む): 60505704

約数和(自身を除く): 29292574

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 240101, 480202, 1200505, 2401010, 3121313, 6242626, 15606565, 31213130]

約数ペア:

[(1, 31213130), (2, 15606565), (5, 6242626), (10, 3121313), (13, 2401010), (26, 1200505), (65, 480202), (130, 240101)]