77403880

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2357}}^1$

素因数の和:3189

約数の個数: 32

約数和(自身を含む): 174444840

約数和(自身を除く): 97040960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 2357, 3284, 4105, 4714, 6568, 8210, 9428, 11785, 16420, 18856, 23570, 32840, 47140, 94280, 1935097, 3870194, 7740388, 9675485, 15480776, 19350970, 38701940, 77403880]

約数ペア:

[(1, 77403880), (2, 38701940), (4, 19350970), (5, 15480776), (8, 9675485), (10, 7740388), (20, 3870194), (40, 1935097), (821, 94280), (1642, 47140), (2357, 32840), (3284, 23570), (4105, 18856), (4714, 16420), (6568, 11785), (8210, 9428)]