172207025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{613}}^1\times {\mathrm{661}}^1$

素因数の和:1301

約数の個数: 24

約数和(自身を含む): 226809144

約数和(自身を除く): 54602119

約数列:

[1, 5, 17, 25, 85, 425, 613, 661, 3065, 3305, 10421, 11237, 15325, 16525, 52105, 56185, 260525, 280925, 405193, 2025965, 6888281, 10129825, 34441405, 172207025]

約数ペア:

[(1, 172207025), (5, 34441405), (17, 10129825), (25, 6888281), (85, 2025965), (425, 405193), (613, 280925), (661, 260525), (3065, 56185), (3305, 52105), (10421, 16525), (11237, 15325)]