199654160

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{457}}^1$

素因数の和:640

約数の個数: 80

約数和(自身を含む): 479778816

約数和(自身を除く): 280124656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 127, 172, 215, 254, 344, 430, 457, 508, 635, 688, 860, 914, 1016, 1270, 1720, 1828, 2032, 2285, 2540, 3440, 3656, 4570, 5080, 5461, 7312, 9140, 10160, 10922, 18280, 19651, 21844, 27305, 36560, 39302, 43688, 54610, 58039, 78604, 87376, 98255, 109220, 116078, 157208, 196510, 218440, 232156, 290195, 314416, 393020, 436880, 464312, 580390, 786040, 928624, 1160780, 1572080, 2321560, 2495677, 4643120, 4991354, 9982708, 12478385, 19965416, 24956770, 39930832, 49913540, 99827080, 199654160]

約数ペア:

[(1, 199654160), (2, 99827080), (4, 49913540), (5, 39930832), (8, 24956770), (10, 19965416), (16, 12478385), (20, 9982708), (40, 4991354), (43, 4643120), (80, 2495677), (86, 2321560), (127, 1572080), (172, 1160780), (215, 928624), (254, 786040), (344, 580390), (430, 464312), (457, 436880), (508, 393020), (635, 314416), (688, 290195), (860, 232156), (914, 218440), (1016, 196510), (1270, 157208), (1720, 116078), (1828, 109220), (2032, 98255), (2285, 87376), (2540, 78604), (3440, 58039), (3656, 54610), (4570, 43688), (5080, 39302), (5461, 36560), (7312, 27305), (9140, 21844), (10160, 19651), (10922, 18280)]