39981890

素因数分解:

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

素因数の和:16226

約数の個数: 32

約数和(自身を含む): 81587520

約数和(自身を除く): 41605630

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 16187, 32374, 80935, 161870, 210431, 307553, 420862, 615106, 1052155, 1537765, 2104310, 3075530, 3998189, 7996378, 19990945, 39981890]

約数ペア:

[(1, 39981890), (2, 19990945), (5, 7996378), (10, 3998189), (13, 3075530), (19, 2104310), (26, 1537765), (38, 1052155), (65, 615106), (95, 420862), (130, 307553), (190, 210431), (247, 161870), (494, 80935), (1235, 32374), (2470, 16187)]