71980775

素因数分解:

$5^2\times {\mathrm{809}}^1\times {\mathrm{3559}}^1$

素因数の和:4378

約数の個数: 12

約数和(自身を含む): 89391600

約数和(自身を除く): 17410825

約数列:

[1, 5, 25, 809, 3559, 4045, 17795, 20225, 88975, 2879231, 14396155, 71980775]

約数ペア:

[(1, 71980775), (5, 14396155), (25, 2879231), (809, 88975), (3559, 20225), (4045, 17795)]