80984720

素因数分解:

$2^4\times 5^1\times {\mathrm{379}}^1\times {\mathrm{2671}}^1$

素因数の和:3063

約数の個数: 40

約数和(自身を含む): 188856960

約数和(自身を除く): 107872240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 379, 758, 1516, 1895, 2671, 3032, 3790, 5342, 6064, 7580, 10684, 13355, 15160, 21368, 26710, 30320, 42736, 53420, 106840, 213680, 1012309, 2024618, 4049236, 5061545, 8098472, 10123090, 16196944, 20246180, 40492360, 80984720]

約数ペア:

[(1, 80984720), (2, 40492360), (4, 20246180), (5, 16196944), (8, 10123090), (10, 8098472), (16, 5061545), (20, 4049236), (40, 2024618), (80, 1012309), (379, 213680), (758, 106840), (1516, 53420), (1895, 42736), (2671, 30320), (3032, 26710), (3790, 21368), (5342, 15160), (6064, 13355), (7580, 10684)]