71044280

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2687}}^1$

素因数の和:3359

約数の個数: 32

約数和(自身を含む): 160151040

約数和(自身を除く): 89106760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 2687, 3305, 5288, 5374, 6610, 10748, 13220, 13435, 21496, 26440, 26870, 53740, 107480, 1776107, 3552214, 7104428, 8880535, 14208856, 17761070, 35522140, 71044280]

約数ペア:

[(1, 71044280), (2, 35522140), (4, 17761070), (5, 14208856), (8, 8880535), (10, 7104428), (20, 3552214), (40, 1776107), (661, 107480), (1322, 53740), (2644, 26870), (2687, 26440), (3305, 21496), (5288, 13435), (5374, 13220), (6610, 10748)]