205161710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{8011}}^1$

素因数の和:8228

約数の個数: 32

約数和(自身を含む): 399766752

約数和(自身を除く): 194605042

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 985, 1970, 2561, 5122, 8011, 12805, 16022, 25610, 40055, 80110, 104143, 208286, 520715, 1041430, 1578167, 3156334, 7890835, 15781670, 20516171, 41032342, 102580855, 205161710]

約数ペア:

[(1, 205161710), (2, 102580855), (5, 41032342), (10, 20516171), (13, 15781670), (26, 7890835), (65, 3156334), (130, 1578167), (197, 1041430), (394, 520715), (985, 208286), (1970, 104143), (2561, 80110), (5122, 40055), (8011, 25610), (12805, 16022)]