131615975

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{647}}^1$

素因数の和:839

約数の個数: 24

約数和(自身を含む): 167132160

約数和(自身を除く): 35516185

約数列:

[1, 5, 25, 79, 103, 395, 515, 647, 1975, 2575, 3235, 8137, 16175, 40685, 51113, 66641, 203425, 255565, 333205, 1277825, 1666025, 5264639, 26323195, 131615975]

約数ペア:

[(1, 131615975), (5, 26323195), (25, 5264639), (79, 1666025), (103, 1277825), (395, 333205), (515, 255565), (647, 203425), (1975, 66641), (2575, 51113), (3235, 40685), (8137, 16175)]