2658640

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{199}}^1$

素因数の和:379

約数の個数: 40

約数和(自身を含む): 6249600

約数和(自身を除く): 3590960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 199, 334, 398, 668, 796, 835, 995, 1336, 1592, 1670, 1990, 2672, 3184, 3340, 3980, 6680, 7960, 13360, 15920, 33233, 66466, 132932, 166165, 265864, 332330, 531728, 664660, 1329320, 2658640]

約数ペア:

[(1, 2658640), (2, 1329320), (4, 664660), (5, 531728), (8, 332330), (10, 265864), (16, 166165), (20, 132932), (40, 66466), (80, 33233), (167, 15920), (199, 13360), (334, 7960), (398, 6680), (668, 3980), (796, 3340), (835, 3184), (995, 2672), (1336, 1990), (1592, 1670)]