78088840

素因数分解:

$2^3\times 5^1\times {\mathrm{1952221}}^1$

素因数の和:1952232

約数の個数: 16

約数和(自身を含む): 175699980

約数和(自身を除く): 97611140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1952221, 3904442, 7808884, 9761105, 15617768, 19522210, 39044420, 78088840]

約数ペア:

[(1, 78088840), (2, 39044420), (4, 19522210), (5, 15617768), (8, 9761105), (10, 7808884), (20, 3904442), (40, 1952221)]