28704005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 39346560

約数和(自身を除く): 10642555

約数列:

[1, 5, 11, 43, 53, 55, 215, 229, 265, 473, 583, 1145, 2279, 2365, 2519, 2915, 9847, 11395, 12137, 12595, 25069, 49235, 60685, 108317, 125345, 133507, 521891, 541585, 667535, 2609455, 5740801, 28704005]

約数ペア:

[(1, 28704005), (5, 5740801), (11, 2609455), (43, 667535), (53, 541585), (55, 521891), (215, 133507), (229, 125345), (265, 108317), (473, 60685), (583, 49235), (1145, 25069), (2279, 12595), (2365, 12137), (2519, 11395), (2915, 9847)]