40520740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155849}}^1$

素因数の和:155871

約数の個数: 24

約数和(自身を含む): 91639800

約数和(自身を除く): 51119060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 155849, 311698, 623396, 779245, 1558490, 2026037, 3116980, 4052074, 8104148, 10130185, 20260370, 40520740]

約数ペア:

[(1, 40520740), (2, 20260370), (4, 10130185), (5, 8104148), (10, 4052074), (13, 3116980), (20, 2026037), (26, 1558490), (52, 779245), (65, 623396), (130, 311698), (260, 155849)]