31020120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{433}}^1$

素因数の和:649

約数の個数: 96

約数和(自身を含む): 101556000

約数和(自身を除く): 70535880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 199, 360, 398, 433, 597, 796, 866, 995, 1194, 1299, 1592, 1732, 1791, 1990, 2165, 2388, 2598, 2985, 3464, 3582, 3897, 3980, 4330, 4776, 5196, 5970, 6495, 7164, 7794, 7960, 8660, 8955, 10392, 11940, 12990, 14328, 15588, 17320, 17910, 19485, 23880, 25980, 31176, 35820, 38970, 51960, 71640, 77940, 86167, 155880, 172334, 258501, 344668, 430835, 517002, 689336, 775503, 861670, 1034004, 1292505, 1551006, 1723340, 2068008, 2585010, 3102012, 3446680, 3877515, 5170020, 6204024, 7755030, 10340040, 15510060, 31020120]

約数ペア:

[(1, 31020120), (2, 15510060), (3, 10340040), (4, 7755030), (5, 6204024), (6, 5170020), (8, 3877515), (9, 3446680), (10, 3102012), (12, 2585010), (15, 2068008), (18, 1723340), (20, 1551006), (24, 1292505), (30, 1034004), (36, 861670), (40, 775503), (45, 689336), (60, 517002), (72, 430835), (90, 344668), (120, 258501), (180, 172334), (199, 155880), (360, 86167), (398, 77940), (433, 71640), (597, 51960), (796, 38970), (866, 35820), (995, 31176), (1194, 25980), (1299, 23880), (1592, 19485), (1732, 17910), (1791, 17320), (1990, 15588), (2165, 14328), (2388, 12990), (2598, 11940), (2985, 10392), (3464, 8955), (3582, 8660), (3897, 7960), (3980, 7794), (4330, 7164), (4776, 6495), (5196, 5970)]