79899080

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19777}}^1$

素因数の和:19889

約数の個数: 32

約数和(自身を含む): 181562040

約数和(自身を除く): 101662960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 19777, 39554, 79108, 98885, 158216, 197770, 395540, 791080, 1997477, 3994954, 7989908, 9987385, 15979816, 19974770, 39949540, 79899080]

約数ペア:

[(1, 79899080), (2, 39949540), (4, 19974770), (5, 15979816), (8, 9987385), (10, 7989908), (20, 3994954), (40, 1997477), (101, 791080), (202, 395540), (404, 197770), (505, 158216), (808, 98885), (1010, 79108), (2020, 39554), (4040, 19777)]