28178804560

素因数分解:

$2^4\times 5^1\times {\mathrm{11251}}^1\times {\mathrm{31307}}^1$

素因数の和:42571

約数の個数: 40

約数和(自身を含む): 65523636576

約数和(自身を除く): 37344832016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11251, 22502, 31307, 45004, 56255, 62614, 90008, 112510, 125228, 156535, 180016, 225020, 250456, 313070, 450040, 500912, 626140, 900080, 1252280, 2504560, 352235057, 704470114, 1408940228, 1761175285, 2817880456, 3522350570, 5635760912, 7044701140, 14089402280, 28178804560]

約数ペア:

[(1, 28178804560), (2, 14089402280), (4, 7044701140), (5, 5635760912), (8, 3522350570), (10, 2817880456), (16, 1761175285), (20, 1408940228), (40, 704470114), (80, 352235057), (11251, 2504560), (22502, 1252280), (31307, 900080), (45004, 626140), (56255, 500912), (62614, 450040), (90008, 313070), (112510, 250456), (125228, 225020), (156535, 180016)]