1998790

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1979}}^1$

素因数の和:2087

約数の個数: 16

約数和(自身を含む): 3635280

約数和(自身を除く): 1636490

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 1979, 3958, 9895, 19790, 199879, 399758, 999395, 1998790]

約数ペア:

[(1, 1998790), (2, 999395), (5, 399758), (10, 199879), (101, 19790), (202, 9895), (505, 3958), (1010, 1979)]