72185920

素因数分解:

$2^6\times 5^1\times {\mathrm{225581}}^1$

素因数の和:225598

約数の個数: 28

約数和(自身を含む): 171893484

約数和(自身を除く): 99707564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 225581, 451162, 902324, 1127905, 1804648, 2255810, 3609296, 4511620, 7218592, 9023240, 14437184, 18046480, 36092960, 72185920]

約数ペア:

[(1, 72185920), (2, 36092960), (4, 18046480), (5, 14437184), (8, 9023240), (10, 7218592), (16, 4511620), (20, 3609296), (32, 2255810), (40, 1804648), (64, 1127905), (80, 902324), (160, 451162), (320, 225581)]