20415235

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{409}}^1$

素因数の和:630

約数の個数: 16

約数和(自身を含む): 25092000

約数和(自身を除く): 4676765

約数列:

[1, 5, 67, 149, 335, 409, 745, 2045, 9983, 27403, 49915, 60941, 137015, 304705, 4083047, 20415235]

約数ペア:

[(1, 20415235), (5, 4083047), (67, 304705), (149, 137015), (335, 60941), (409, 49915), (745, 27403), (2045, 9983)]