199909450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16187}}^1$

素因数の和:16231

約数の個数: 48

約数和(自身を含む): 421535520

約数和(自身を除く): 221626070

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 130, 190, 247, 325, 475, 494, 650, 950, 1235, 2470, 6175, 12350, 16187, 32374, 80935, 161870, 210431, 307553, 404675, 420862, 615106, 809350, 1052155, 1537765, 2104310, 3075530, 3998189, 5260775, 7688825, 7996378, 10521550, 15377650, 19990945, 39981890, 99954725, 199909450]

約数ペア:

[(1, 199909450), (2, 99954725), (5, 39981890), (10, 19990945), (13, 15377650), (19, 10521550), (25, 7996378), (26, 7688825), (38, 5260775), (50, 3998189), (65, 3075530), (95, 2104310), (130, 1537765), (190, 1052155), (247, 809350), (325, 615106), (475, 420862), (494, 404675), (650, 307553), (950, 210431), (1235, 161870), (2470, 80935), (6175, 32374), (12350, 16187)]