80326490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{1009}}^1$

素因数の和:1454

約数の個数: 32

約数和(自身を含む): 152712000

約数和(自身を除く): 72385510

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 419, 838, 1009, 2018, 2095, 4190, 5045, 7961, 10090, 15922, 19171, 38342, 39805, 79610, 95855, 191710, 422771, 845542, 2113855, 4227710, 8032649, 16065298, 40163245, 80326490]

約数ペア:

[(1, 80326490), (2, 40163245), (5, 16065298), (10, 8032649), (19, 4227710), (38, 2113855), (95, 845542), (190, 422771), (419, 191710), (838, 95855), (1009, 79610), (2018, 39805), (2095, 38342), (4190, 19171), (5045, 15922), (7961, 10090)]