289131025

素因数分解:

$5^2\times {\mathrm{151}}^1\times {\mathrm{191}}^1\times {\mathrm{401}}^1$

素因数の和:753

約数の個数: 24

約数和(自身を含む): 363691008

約数和(自身を除く): 74559983

約数列:

[1, 5, 25, 151, 191, 401, 755, 955, 2005, 3775, 4775, 10025, 28841, 60551, 76591, 144205, 302755, 382955, 721025, 1513775, 1914775, 11565241, 57826205, 289131025]

約数ペア:

[(1, 289131025), (5, 57826205), (25, 11565241), (151, 1914775), (191, 1513775), (401, 721025), (755, 382955), (955, 302755), (2005, 144205), (3775, 76591), (4775, 60551), (10025, 28841)]