71648840

素因数分解:

$2^3\times 5^1\times {\mathrm{1791221}}^1$

素因数の和:1791232

約数の個数: 16

約数和(自身を含む): 161209980

約数和(自身を除く): 89561140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1791221, 3582442, 7164884, 8956105, 14329768, 17912210, 35824420, 71648840]

約数ペア:

[(1, 71648840), (2, 35824420), (4, 17912210), (5, 14329768), (8, 8956105), (10, 7164884), (20, 3582442), (40, 1791221)]