20521392710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{727451}}^1$

素因数の和:727509

約数の個数: 64

約数和(自身を含む): 46929383424

約数和(自身を除く): 26407990714

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 31, 35, 62, 65, 70, 91, 130, 155, 182, 217, 310, 403, 434, 455, 806, 910, 1085, 2015, 2170, 2821, 4030, 5642, 14105, 28210, 727451, 1454902, 3637255, 5092157, 7274510, 9456863, 10184314, 18913726, 22550981, 25460785, 45101962, 47284315, 50921570, 66198041, 94568630, 112754905, 132396082, 157856867, 225509810, 293162753, 315713734, 330990205, 586325506, 661980410, 789284335, 1465813765, 1578568670, 2052139271, 2931627530, 4104278542, 10260696355, 20521392710]

約数ペア:

[(1, 20521392710), (2, 10260696355), (5, 4104278542), (7, 2931627530), (10, 2052139271), (13, 1578568670), (14, 1465813765), (26, 789284335), (31, 661980410), (35, 586325506), (62, 330990205), (65, 315713734), (70, 293162753), (91, 225509810), (130, 157856867), (155, 132396082), (182, 112754905), (217, 94568630), (310, 66198041), (403, 50921570), (434, 47284315), (455, 45101962), (806, 25460785), (910, 22550981), (1085, 18913726), (2015, 10184314), (2170, 9456863), (2821, 7274510), (4030, 5092157), (5642, 3637255), (14105, 1454902), (28210, 727451)]