51211960

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{2029}}^1$

素因数の和:2671

約数の個数: 32

約数和(自身を含む): 115466400

約数和(自身を除く): 64254440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2029, 2524, 3155, 4058, 5048, 6310, 8116, 10145, 12620, 16232, 20290, 25240, 40580, 81160, 1280299, 2560598, 5121196, 6401495, 10242392, 12802990, 25605980, 51211960]

約数ペア:

[(1, 51211960), (2, 25605980), (4, 12802990), (5, 10242392), (8, 6401495), (10, 5121196), (20, 2560598), (40, 1280299), (631, 81160), (1262, 40580), (2029, 25240), (2524, 20290), (3155, 16232), (4058, 12620), (5048, 10145), (6310, 8116)]