218256925

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{233}}^1\times {\mathrm{421}}^1$

素因数の和:753

約数の個数: 24

約数和(自身を含む): 275506920

約数和(自身を除く): 57249995

約数列:

[1, 5, 25, 89, 233, 421, 445, 1165, 2105, 2225, 5825, 10525, 20737, 37469, 98093, 103685, 187345, 490465, 518425, 936725, 2452325, 8730277, 43651385, 218256925]

約数ペア:

[(1, 218256925), (5, 43651385), (25, 8730277), (89, 2452325), (233, 936725), (421, 518425), (445, 490465), (1165, 187345), (2105, 103685), (2225, 98093), (5825, 37469), (10525, 20737)]