28361560

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5101}}^1$

素因数の和:5251

約数の個数: 32

約数和(自身を含む): 64285200

約数和(自身を除く): 35923640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5101, 5560, 10202, 20404, 25505, 40808, 51010, 102020, 204040, 709039, 1418078, 2836156, 3545195, 5672312, 7090390, 14180780, 28361560]

約数ペア:

[(1, 28361560), (2, 14180780), (4, 7090390), (5, 5672312), (8, 3545195), (10, 2836156), (20, 1418078), (40, 709039), (139, 204040), (278, 102020), (556, 51010), (695, 40808), (1112, 25505), (1390, 20404), (2780, 10202), (5101, 5560)]