20615810

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71089}}^1$

素因数の和:71125

約数の個数: 16

約数和(自身を含む): 38388600

約数和(自身を除く): 17772790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 71089, 142178, 355445, 710890, 2061581, 4123162, 10307905, 20615810]

約数ペア:

[(1, 20615810), (2, 10307905), (5, 4123162), (10, 2061581), (29, 710890), (58, 355445), (145, 142178), (290, 71089)]