20106960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:636

約数の個数: 80

約数和(自身を含む): 62793600

約数和(自身を除く): 42686640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 199, 240, 398, 421, 597, 796, 842, 995, 1194, 1263, 1592, 1684, 1990, 2105, 2388, 2526, 2985, 3184, 3368, 3980, 4210, 4776, 5052, 5970, 6315, 6736, 7960, 8420, 9552, 10104, 11940, 12630, 15920, 16840, 20208, 23880, 25260, 33680, 47760, 50520, 83779, 101040, 167558, 251337, 335116, 418895, 502674, 670232, 837790, 1005348, 1256685, 1340464, 1675580, 2010696, 2513370, 3351160, 4021392, 5026740, 6702320, 10053480, 20106960]

約数ペア:

[(1, 20106960), (2, 10053480), (3, 6702320), (4, 5026740), (5, 4021392), (6, 3351160), (8, 2513370), (10, 2010696), (12, 1675580), (15, 1340464), (16, 1256685), (20, 1005348), (24, 837790), (30, 670232), (40, 502674), (48, 418895), (60, 335116), (80, 251337), (120, 167558), (199, 101040), (240, 83779), (398, 50520), (421, 47760), (597, 33680), (796, 25260), (842, 23880), (995, 20208), (1194, 16840), (1263, 15920), (1592, 12630), (1684, 11940), (1990, 10104), (2105, 9552), (2388, 8420), (2526, 7960), (2985, 6736), (3184, 6315), (3368, 5970), (3980, 5052), (4210, 4776)]