2720455270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{547}}^1\times {\mathrm{571}}^1$

素因数の和:1205

約数の個数: 64

約数和(自身を含む): 5371382016

約数和(自身を除く): 2650926746

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 547, 571, 670, 871, 1094, 1142, 1742, 2735, 2855, 4355, 5470, 5710, 7111, 7423, 8710, 14222, 14846, 35555, 36649, 37115, 38257, 71110, 73298, 74230, 76514, 183245, 191285, 312337, 366490, 382570, 476437, 497341, 624674, 952874, 994682, 1561685, 2382185, 2486705, 3123370, 4060381, 4764370, 4973410, 8120762, 20301905, 20926579, 40603810, 41853158, 104632895, 209265790, 272045527, 544091054, 1360227635, 2720455270]

約数ペア:

[(1, 2720455270), (2, 1360227635), (5, 544091054), (10, 272045527), (13, 209265790), (26, 104632895), (65, 41853158), (67, 40603810), (130, 20926579), (134, 20301905), (335, 8120762), (547, 4973410), (571, 4764370), (670, 4060381), (871, 3123370), (1094, 2486705), (1142, 2382185), (1742, 1561685), (2735, 994682), (2855, 952874), (4355, 624674), (5470, 497341), (5710, 476437), (7111, 382570), (7423, 366490), (8710, 312337), (14222, 191285), (14846, 183245), (35555, 76514), (36649, 74230), (37115, 73298), (38257, 71110)]