64357025

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{457}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 82461984

約数和(自身を除く): 18104959

約数列:

[1, 5, 25, 43, 131, 215, 457, 655, 1075, 2285, 3275, 5633, 11425, 19651, 28165, 59867, 98255, 140825, 299335, 491275, 1496675, 2574281, 12871405, 64357025]

約数ペア:

[(1, 64357025), (5, 12871405), (25, 2574281), (43, 1496675), (131, 491275), (215, 299335), (457, 140825), (655, 98255), (1075, 59867), (2285, 28165), (3275, 19651), (5633, 11425)]