51230560

素因数分解:

$2^5\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1609}}^1$

素因数の和:1823

約数の個数: 48

約数和(自身を含む): 121716000

約数和(自身を除く): 70485440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 398, 796, 995, 1592, 1609, 1990, 3184, 3218, 3980, 6368, 6436, 7960, 8045, 12872, 15920, 16090, 25744, 31840, 32180, 51488, 64360, 128720, 257440, 320191, 640382, 1280764, 1600955, 2561528, 3201910, 5123056, 6403820, 10246112, 12807640, 25615280, 51230560]

約数ペア:

[(1, 51230560), (2, 25615280), (4, 12807640), (5, 10246112), (8, 6403820), (10, 5123056), (16, 3201910), (20, 2561528), (32, 1600955), (40, 1280764), (80, 640382), (160, 320191), (199, 257440), (398, 128720), (796, 64360), (995, 51488), (1592, 32180), (1609, 31840), (1990, 25744), (3184, 16090), (3218, 15920), (3980, 12872), (6368, 8045), (6436, 7960)]