391580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2797}}^1$

素因数の和:2813

約数の個数: 24

約数和(自身を含む): 940128

約数和(自身を除く): 548548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2797, 5594, 11188, 13985, 19579, 27970, 39158, 55940, 78316, 97895, 195790, 391580]

約数ペア:

[(1, 391580), (2, 195790), (4, 97895), (5, 78316), (7, 55940), (10, 39158), (14, 27970), (20, 19579), (28, 13985), (35, 11188), (70, 5594), (140, 2797)]