80969120

素因数分解:

$2^5\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2543}}^1$

素因数の和:2757

約数の個数: 48

約数和(自身を含む): 192326400

約数和(自身を除く): 111357280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 398, 796, 995, 1592, 1990, 2543, 3184, 3980, 5086, 6368, 7960, 10172, 12715, 15920, 20344, 25430, 31840, 40688, 50860, 81376, 101720, 203440, 406880, 506057, 1012114, 2024228, 2530285, 4048456, 5060570, 8096912, 10121140, 16193824, 20242280, 40484560, 80969120]

約数ペア:

[(1, 80969120), (2, 40484560), (4, 20242280), (5, 16193824), (8, 10121140), (10, 8096912), (16, 5060570), (20, 4048456), (32, 2530285), (40, 2024228), (80, 1012114), (160, 506057), (199, 406880), (398, 203440), (796, 101720), (995, 81376), (1592, 50860), (1990, 40688), (2543, 31840), (3184, 25430), (3980, 20344), (5086, 15920), (6368, 12715), (7960, 10172)]