803960

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 1836000

約数和(自身を除く): 1032040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 199, 202, 398, 404, 505, 796, 808, 995, 1010, 1592, 1990, 2020, 3980, 4040, 7960, 20099, 40198, 80396, 100495, 160792, 200990, 401980, 803960]

約数ペア:

[(1, 803960), (2, 401980), (4, 200990), (5, 160792), (8, 100495), (10, 80396), (20, 40198), (40, 20099), (101, 7960), (199, 4040), (202, 3980), (398, 2020), (404, 1990), (505, 1592), (796, 1010), (808, 995)]