19703080

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4877}}^1$

素因数の和:4989

約数の個数: 32

約数和(自身を含む): 44780040

約数和(自身を除く): 25076960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4877, 9754, 19508, 24385, 39016, 48770, 97540, 195080, 492577, 985154, 1970308, 2462885, 3940616, 4925770, 9851540, 19703080]

約数ペア:

[(1, 19703080), (2, 9851540), (4, 4925770), (5, 3940616), (8, 2462885), (10, 1970308), (20, 985154), (40, 492577), (101, 195080), (202, 97540), (404, 48770), (505, 39016), (808, 24385), (1010, 19508), (2020, 9754), (4040, 4877)]