19996580

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{5987}}^1$

素因数の和:6163

約数の個数: 24

約数和(自身を含む): 42251328

約数和(自身を除く): 22254748

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 5987, 11974, 23948, 29935, 59870, 119740, 999829, 1999658, 3999316, 4999145, 9998290, 19996580]

約数ペア:

[(1, 19996580), (2, 9998290), (4, 4999145), (5, 3999316), (10, 1999658), (20, 999829), (167, 119740), (334, 59870), (668, 29935), (835, 23948), (1670, 11974), (3340, 5987)]