30981340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{119159}}^1$

素因数の和:119181

約数の個数: 24

約数和(自身を含む): 70066080

約数和(自身を除く): 39084740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 119159, 238318, 476636, 595795, 1191590, 1549067, 2383180, 3098134, 6196268, 7745335, 15490670, 30981340]

約数ペア:

[(1, 30981340), (2, 15490670), (4, 7745335), (5, 6196268), (10, 3098134), (13, 2383180), (20, 1549067), (26, 1191590), (52, 595795), (65, 476636), (130, 238318), (260, 119159)]