20295025

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{53}}^2$

素因数の和:150

約数の個数: 27

約数和(自身を含む): 27247171

約数和(自身を除く): 6952146

約数列:

[1, 5, 17, 25, 53, 85, 265, 289, 425, 901, 1325, 1445, 2809, 4505, 7225, 14045, 15317, 22525, 47753, 70225, 76585, 238765, 382925, 811801, 1193825, 4059005, 20295025]

約数ペア:

[(1, 20295025), (5, 4059005), (17, 1193825), (25, 811801), (53, 382925), (85, 238765), (265, 76585), (289, 70225), (425, 47753), (901, 22525), (1325, 15317), (1445, 14045), (2809, 7225)]