31227080

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{3923}}^1$

素因数の和:4133

約数の個数: 32

約数和(自身を含む): 70632000

約数和(自身を除く): 39404920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3923, 3980, 7846, 7960, 15692, 19615, 31384, 39230, 78460, 156920, 780677, 1561354, 3122708, 3903385, 6245416, 7806770, 15613540, 31227080]

約数ペア:

[(1, 31227080), (2, 15613540), (4, 7806770), (5, 6245416), (8, 3903385), (10, 3122708), (20, 1561354), (40, 780677), (199, 156920), (398, 78460), (796, 39230), (995, 31384), (1592, 19615), (1990, 15692), (3923, 7960), (3980, 7846)]