400101260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1538851}}^1$

素因数の和:1538873

約数の個数: 24

約数和(自身を含む): 904844976

約数和(自身を除く): 504743716

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1538851, 3077702, 6155404, 7694255, 15388510, 20005063, 30777020, 40010126, 80020252, 100025315, 200050630, 400101260]

約数ペア:

[(1, 400101260), (2, 200050630), (4, 100025315), (5, 80020252), (10, 40010126), (13, 30777020), (20, 20005063), (26, 15388510), (52, 7694255), (65, 6155404), (130, 3077702), (260, 1538851)]