39795025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 52328000

約数和(自身を除く): 12532975

約数列:

[1, 5, 19, 25, 95, 199, 421, 475, 995, 2105, 3781, 4975, 7999, 10525, 18905, 39995, 83779, 94525, 199975, 418895, 1591801, 2094475, 7959005, 39795025]

約数ペア:

[(1, 39795025), (5, 7959005), (19, 2094475), (25, 1591801), (95, 418895), (199, 199975), (421, 94525), (475, 83779), (995, 39995), (2105, 18905), (3781, 10525), (4975, 7999)]