18881120

素因数分解:

$2^5\times 5^1\times {\mathrm{199}}^1\times {\mathrm{593}}^1$

素因数の和:807

約数の個数: 48

約数和(自身を含む): 44906400

約数和(自身を除く): 26025280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 398, 593, 796, 995, 1186, 1592, 1990, 2372, 2965, 3184, 3980, 4744, 5930, 6368, 7960, 9488, 11860, 15920, 18976, 23720, 31840, 47440, 94880, 118007, 236014, 472028, 590035, 944056, 1180070, 1888112, 2360140, 3776224, 4720280, 9440560, 18881120]

約数ペア:

[(1, 18881120), (2, 9440560), (4, 4720280), (5, 3776224), (8, 2360140), (10, 1888112), (16, 1180070), (20, 944056), (32, 590035), (40, 472028), (80, 236014), (160, 118007), (199, 94880), (398, 47440), (593, 31840), (796, 23720), (995, 18976), (1186, 15920), (1592, 11860), (1990, 9488), (2372, 7960), (2965, 6368), (3184, 5930), (3980, 4744)]