71800025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1663}}^1$

素因数の和:1841

約数の個数: 24

約数和(自身を含む): 97803264

約数和(自身を除く): 26003239

約数列:

[1, 5, 11, 25, 55, 157, 275, 785, 1663, 1727, 3925, 8315, 8635, 18293, 41575, 43175, 91465, 261091, 457325, 1305455, 2872001, 6527275, 14360005, 71800025]

約数ペア:

[(1, 71800025), (5, 14360005), (11, 6527275), (25, 2872001), (55, 1305455), (157, 457325), (275, 261091), (785, 91465), (1663, 43175), (1727, 41575), (3925, 18293), (8315, 8635)]