20215622020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{236219}}^1$

素因数の和:236628

約数の個数: 48

約数和(自身を含む): 46431403200

約数和(自身を除く): 26215781180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 389, 778, 1556, 1945, 3890, 4279, 7780, 8558, 17116, 21395, 42790, 85580, 236219, 472438, 944876, 1181095, 2362190, 2598409, 4724380, 5196818, 10393636, 12992045, 25984090, 51968180, 91889191, 183778382, 367556764, 459445955, 918891910, 1010781101, 1837783820, 2021562202, 4043124404, 5053905505, 10107811010, 20215622020]

約数ペア:

[(1, 20215622020), (2, 10107811010), (4, 5053905505), (5, 4043124404), (10, 2021562202), (11, 1837783820), (20, 1010781101), (22, 918891910), (44, 459445955), (55, 367556764), (110, 183778382), (220, 91889191), (389, 51968180), (778, 25984090), (1556, 12992045), (1945, 10393636), (3890, 5196818), (4279, 4724380), (7780, 2598409), (8558, 2362190), (17116, 1181095), (21395, 944876), (42790, 472438), (85580, 236219)]