64568125

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:199

約数の個数: 40

約数和(自身を含む): 87721920

約数和(自身を除く): 23153795

約数列:

[1, 5, 17, 25, 59, 85, 103, 125, 295, 425, 515, 625, 1003, 1475, 1751, 2125, 2575, 5015, 6077, 7375, 8755, 10625, 12875, 25075, 30385, 36875, 43775, 64375, 103309, 125375, 151925, 218875, 516545, 626875, 759625, 1094375, 2582725, 3798125, 12913625, 64568125]

約数ペア:

[(1, 64568125), (5, 12913625), (17, 3798125), (25, 2582725), (59, 1094375), (85, 759625), (103, 626875), (125, 516545), (295, 218875), (425, 151925), (515, 125375), (625, 103309), (1003, 64375), (1475, 43775), (1751, 36875), (2125, 30385), (2575, 25075), (5015, 12875), (6077, 10625), (7375, 8755)]