79427380

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{28571}}^1$

素因数の和:28719

約数の個数: 24

約数和(自身を含む): 168003360

約数和(自身を除く): 88575980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 28571, 57142, 114284, 142855, 285710, 571420, 3971369, 7942738, 15885476, 19856845, 39713690, 79427380]

約数ペア:

[(1, 79427380), (2, 39713690), (4, 19856845), (5, 15885476), (10, 7942738), (20, 3971369), (139, 571420), (278, 285710), (556, 142855), (695, 114284), (1390, 57142), (2780, 28571)]