20292279980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{997}}^1\times {\mathrm{145381}}^1$

素因数の和:146394

約数の個数: 48

約数和(自身を含む): 48750655296

約数和(自身を除く): 28458375316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 997, 1994, 3988, 4985, 6979, 9970, 13958, 19940, 27916, 34895, 69790, 139580, 145381, 290762, 581524, 726905, 1017667, 1453810, 2035334, 2907620, 4070668, 5088335, 10176670, 20353340, 144944857, 289889714, 579779428, 724724285, 1014613999, 1449448570, 2029227998, 2898897140, 4058455996, 5073069995, 10146139990, 20292279980]

約数ペア:

[(1, 20292279980), (2, 10146139990), (4, 5073069995), (5, 4058455996), (7, 2898897140), (10, 2029227998), (14, 1449448570), (20, 1014613999), (28, 724724285), (35, 579779428), (70, 289889714), (140, 144944857), (997, 20353340), (1994, 10176670), (3988, 5088335), (4985, 4070668), (6979, 2907620), (9970, 2035334), (13958, 1453810), (19940, 1017667), (27916, 726905), (34895, 581524), (69790, 290762), (139580, 145381)]