77685680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51109}}^1$

素因数の和:51141

約数の個数: 40

約数和(自身を含む): 190129200

約数和(自身を除く): 112443520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 51109, 102218, 204436, 255545, 408872, 511090, 817744, 971071, 1022180, 1942142, 2044360, 3884284, 4088720, 4855355, 7768568, 9710710, 15537136, 19421420, 38842840, 77685680]

約数ペア:

[(1, 77685680), (2, 38842840), (4, 19421420), (5, 15537136), (8, 9710710), (10, 7768568), (16, 4855355), (19, 4088720), (20, 3884284), (38, 2044360), (40, 1942142), (76, 1022180), (80, 971071), (95, 817744), (152, 511090), (190, 408872), (304, 255545), (380, 204436), (760, 102218), (1520, 51109)]