20161931080

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4990577}}^1$

素因数の和:4990689

約数の個数: 32

約数和(自身を含む): 45813506040

約数和(自身を除く): 25651574960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4990577, 9981154, 19962308, 24952885, 39924616, 49905770, 99811540, 199623080, 504048277, 1008096554, 2016193108, 2520241385, 4032386216, 5040482770, 10080965540, 20161931080]

約数ペア:

[(1, 20161931080), (2, 10080965540), (4, 5040482770), (5, 4032386216), (8, 2520241385), (10, 2016193108), (20, 1008096554), (40, 504048277), (101, 199623080), (202, 99811540), (404, 49905770), (505, 39924616), (808, 24952885), (1010, 19962308), (2020, 9981154), (4040, 4990577)]