28762640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21149}}^1$

素因数の和:21179

約数の個数: 40

約数和(自身を含む): 70810200

約数和(自身を除く): 42047560

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 21149, 42298, 84596, 105745, 169192, 211490, 338384, 359533, 422980, 719066, 845960, 1438132, 1691920, 1797665, 2876264, 3595330, 5752528, 7190660, 14381320, 28762640]

約数ペア:

[(1, 28762640), (2, 14381320), (4, 7190660), (5, 5752528), (8, 3595330), (10, 2876264), (16, 1797665), (17, 1691920), (20, 1438132), (34, 845960), (40, 719066), (68, 422980), (80, 359533), (85, 338384), (136, 211490), (170, 169192), (272, 105745), (340, 84596), (680, 42298), (1360, 21149)]