2009721880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1069001}}^1$

素因数の和:1069059

約数の個数: 32

約数和(自身を含む): 4618088640

約数和(自身を除く): 2608366760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 1069001, 2138002, 4276004, 5345005, 8552008, 10690010, 21380020, 42760040, 50243047, 100486094, 200972188, 251215235, 401944376, 502430470, 1004860940, 2009721880]

約数ペア:

[(1, 2009721880), (2, 1004860940), (4, 502430470), (5, 401944376), (8, 251215235), (10, 200972188), (20, 100486094), (40, 50243047), (47, 42760040), (94, 21380020), (188, 10690010), (235, 8552008), (376, 5345005), (470, 4276004), (940, 2138002), (1880, 1069001)]