26687875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:712

約数の個数: 32

約数和(自身を含む): 37177920

約数和(自身を除く): 10490045

約数列:

[1, 5, 17, 19, 25, 85, 95, 125, 323, 425, 475, 661, 1615, 2125, 2375, 3305, 8075, 11237, 12559, 16525, 40375, 56185, 62795, 82625, 213503, 280925, 313975, 1067515, 1404625, 1569875, 5337575, 26687875]

約数ペア:

[(1, 26687875), (5, 5337575), (17, 1569875), (19, 1404625), (25, 1067515), (85, 313975), (95, 280925), (125, 213503), (323, 82625), (425, 62795), (475, 56185), (661, 40375), (1615, 16525), (2125, 12559), (2375, 11237), (3305, 8075)]