216501475

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{109621}}^1$

素因数の和:109710

約数の個数: 12

約数和(自身を含む): 271862560

約数和(自身を除く): 55361085

約数列:

[1, 5, 25, 79, 395, 1975, 109621, 548105, 2740525, 8660059, 43300295, 216501475]

約数ペア:

[(1, 216501475), (5, 43300295), (25, 8660059), (79, 2740525), (395, 548105), (1975, 109621)]