1806920

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 4104000

約数和(自身を除く): 2297080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 227, 398, 454, 796, 908, 995, 1135, 1592, 1816, 1990, 2270, 3980, 4540, 7960, 9080, 45173, 90346, 180692, 225865, 361384, 451730, 903460, 1806920]

約数ペア:

[(1, 1806920), (2, 903460), (4, 451730), (5, 361384), (8, 225865), (10, 180692), (20, 90346), (40, 45173), (199, 9080), (227, 7960), (398, 4540), (454, 3980), (796, 2270), (908, 1990), (995, 1816), (1135, 1592)]