8027480

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1987}}^1$

素因数の和:2099

約数の個数: 32

約数和(自身を含む): 18249840

約数和(自身を除く): 10222360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 1987, 2020, 3974, 4040, 7948, 9935, 15896, 19870, 39740, 79480, 200687, 401374, 802748, 1003435, 1605496, 2006870, 4013740, 8027480]

約数ペア:

[(1, 8027480), (2, 4013740), (4, 2006870), (5, 1605496), (8, 1003435), (10, 802748), (20, 401374), (40, 200687), (101, 79480), (202, 39740), (404, 19870), (505, 15896), (808, 9935), (1010, 7948), (1987, 4040), (2020, 3974)]