51620440

素因数分解:

$2^3\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1279}}^1$

素因数の和:2299

約数の個数: 32

約数和(自身を含む): 116352000

約数和(自身を除く): 64731560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1009, 1279, 2018, 2558, 4036, 5045, 5116, 6395, 8072, 10090, 10232, 12790, 20180, 25580, 40360, 51160, 1290511, 2581022, 5162044, 6452555, 10324088, 12905110, 25810220, 51620440]

約数ペア:

[(1, 51620440), (2, 25810220), (4, 12905110), (5, 10324088), (8, 6452555), (10, 5162044), (20, 2581022), (40, 1290511), (1009, 51160), (1279, 40360), (2018, 25580), (2558, 20180), (4036, 12790), (5045, 10232), (5116, 10090), (6395, 8072)]