2563525

素因数分解:

$5^2\times {\mathrm{41}}^2\times {\mathrm{61}}^1$

素因数の和:153

約数の個数: 18

約数和(自身を含む): 3311606

約数和(自身を除く): 748081

約数列:

[1, 5, 25, 41, 61, 205, 305, 1025, 1525, 1681, 2501, 8405, 12505, 42025, 62525, 102541, 512705, 2563525]

約数ペア:

[(1, 2563525), (5, 512705), (25, 102541), (41, 62525), (61, 42025), (205, 12505), (305, 8405), (1025, 2501), (1525, 1681)]