40140440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16451}}^1$

素因数の和:16523

約数の個数: 32

約数和(自身を含む): 91802160

約数和(自身を除く): 51661720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 16451, 32902, 65804, 82255, 131608, 164510, 329020, 658040, 1003511, 2007022, 4014044, 5017555, 8028088, 10035110, 20070220, 40140440]

約数ペア:

[(1, 40140440), (2, 20070220), (4, 10035110), (5, 8028088), (8, 5017555), (10, 4014044), (20, 2007022), (40, 1003511), (61, 658040), (122, 329020), (244, 164510), (305, 131608), (488, 82255), (610, 65804), (1220, 32902), (2440, 16451)]