51409640

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{9811}}^1$

素因数の和:9953

約数の個数: 32

約数和(自身を含む): 116566560

約数和(自身を除く): 65156920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 9811, 19622, 39244, 49055, 78488, 98110, 196220, 392440, 1285241, 2570482, 5140964, 6426205, 10281928, 12852410, 25704820, 51409640]

約数ペア:

[(1, 51409640), (2, 25704820), (4, 12852410), (5, 10281928), (8, 6426205), (10, 5140964), (20, 2570482), (40, 1285241), (131, 392440), (262, 196220), (524, 98110), (655, 78488), (1048, 49055), (1310, 39244), (2620, 19622), (5240, 9811)]