7987120

素因数分解:

$2^4\times 5^1\times {\mathrm{99839}}^1$

素因数の和:99852

約数の個数: 20

約数和(自身を含む): 18570240

約数和(自身を除く): 10583120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 99839, 199678, 399356, 499195, 798712, 998390, 1597424, 1996780, 3993560, 7987120]

約数ペア:

[(1, 7987120), (2, 3993560), (4, 1996780), (5, 1597424), (8, 998390), (10, 798712), (16, 499195), (20, 399356), (40, 199678), (80, 99839)]