80427840

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:640

約数の個数: 112

約数和(自身を含む): 257251200

約数和(自身を除く): 176823360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 199, 240, 320, 398, 421, 480, 597, 796, 842, 960, 995, 1194, 1263, 1592, 1684, 1990, 2105, 2388, 2526, 2985, 3184, 3368, 3980, 4210, 4776, 5052, 5970, 6315, 6368, 6736, 7960, 8420, 9552, 10104, 11940, 12630, 12736, 13472, 15920, 16840, 19104, 20208, 23880, 25260, 26944, 31840, 33680, 38208, 40416, 47760, 50520, 63680, 67360, 80832, 83779, 95520, 101040, 134720, 167558, 191040, 202080, 251337, 335116, 404160, 418895, 502674, 670232, 837790, 1005348, 1256685, 1340464, 1675580, 2010696, 2513370, 2680928, 3351160, 4021392, 5026740, 5361856, 6702320, 8042784, 10053480, 13404640, 16085568, 20106960, 26809280, 40213920, 80427840]

約数ペア:

[(1, 80427840), (2, 40213920), (3, 26809280), (4, 20106960), (5, 16085568), (6, 13404640), (8, 10053480), (10, 8042784), (12, 6702320), (15, 5361856), (16, 5026740), (20, 4021392), (24, 3351160), (30, 2680928), (32, 2513370), (40, 2010696), (48, 1675580), (60, 1340464), (64, 1256685), (80, 1005348), (96, 837790), (120, 670232), (160, 502674), (192, 418895), (199, 404160), (240, 335116), (320, 251337), (398, 202080), (421, 191040), (480, 167558), (597, 134720), (796, 101040), (842, 95520), (960, 83779), (995, 80832), (1194, 67360), (1263, 63680), (1592, 50520), (1684, 47760), (1990, 40416), (2105, 38208), (2388, 33680), (2526, 31840), (2985, 26944), (3184, 25260), (3368, 23880), (3980, 20208), (4210, 19104), (4776, 16840), (5052, 15920), (5970, 13472), (6315, 12736), (6368, 12630), (6736, 11940), (7960, 10104), (8420, 9552)]