3979400

素因数分解:

$2^3\times 5^2\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 9391140

約数和(自身を除く): 5411740

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 197, 200, 202, 394, 404, 505, 788, 808, 985, 1010, 1576, 1970, 2020, 2525, 3940, 4040, 4925, 5050, 7880, 9850, 10100, 19700, 19897, 20200, 39400, 39794, 79588, 99485, 159176, 198970, 397940, 497425, 795880, 994850, 1989700, 3979400]

約数ペア:

[(1, 3979400), (2, 1989700), (4, 994850), (5, 795880), (8, 497425), (10, 397940), (20, 198970), (25, 159176), (40, 99485), (50, 79588), (100, 39794), (101, 39400), (197, 20200), (200, 19897), (202, 19700), (394, 10100), (404, 9850), (505, 7880), (788, 5050), (808, 4925), (985, 4040), (1010, 3940), (1576, 2525), (1970, 2020)]