20009090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1987}}^1$

素因数の和:2066

約数の個数: 32

約数和(自身を含む): 38646720

約数和(自身を除く): 18637630

約数列:

[1, 2, 5, 10, 19, 38, 53, 95, 106, 190, 265, 530, 1007, 1987, 2014, 3974, 5035, 9935, 10070, 19870, 37753, 75506, 105311, 188765, 210622, 377530, 526555, 1053110, 2000909, 4001818, 10004545, 20009090]

約数ペア:

[(1, 20009090), (2, 10004545), (5, 4001818), (10, 2000909), (19, 1053110), (38, 526555), (53, 377530), (95, 210622), (106, 188765), (190, 105311), (265, 75506), (530, 37753), (1007, 19870), (1987, 10070), (2014, 9935), (3974, 5035)]