20125100

素因数分解:

$2^2\times 5^2\times {\mathrm{201251}}^1$

素因数の和:201265

約数の個数: 18

約数和(自身を含む): 43671684

約数和(自身を除く): 23546584

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 201251, 402502, 805004, 1006255, 2012510, 4025020, 5031275, 10062550, 20125100]

約数ペア:

[(1, 20125100), (2, 10062550), (4, 5031275), (5, 4025020), (10, 2012510), (20, 1006255), (25, 805004), (50, 402502), (100, 201251)]