1998160

素因数分解:

$2^4\times 5^1\times {\mathrm{24977}}^1$

素因数の和:24990

約数の個数: 20

約数和(自身を含む): 4645908

約数和(自身を除く): 2647748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 24977, 49954, 99908, 124885, 199816, 249770, 399632, 499540, 999080, 1998160]

約数ペア:

[(1, 1998160), (2, 999080), (4, 499540), (5, 399632), (8, 249770), (10, 199816), (16, 124885), (20, 99908), (40, 49954), (80, 24977)]