19588880

素因数分解:

$2^4\times 5^1\times {\mathrm{244861}}^1$

素因数の和:244874

約数の個数: 20

約数和(自身を含む): 45544332

約数和(自身を除く): 25955452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244861, 489722, 979444, 1224305, 1958888, 2448610, 3917776, 4897220, 9794440, 19588880]

約数ペア:

[(1, 19588880), (2, 9794440), (4, 4897220), (5, 3917776), (8, 2448610), (10, 1958888), (16, 1224305), (20, 979444), (40, 489722), (80, 244861)]