81878768

素因数分解:

$2^4\times {\mathrm{439}}^1\times {\mathrm{11657}}^1$

素因数の和:12104

約数の個数: 20

約数和(自身を含む): 159015120

約数和(自身を除く): 77136352

約数列:

[1, 2, 4, 8, 16, 439, 878, 1756, 3512, 7024, 11657, 23314, 46628, 93256, 186512, 5117423, 10234846, 20469692, 40939384, 81878768]

約数ペア:

[(1, 81878768), (2, 40939384), (4, 20469692), (8, 10234846), (16, 5117423), (439, 186512), (878, 93256), (1756, 46628), (3512, 23314), (7024, 11657)]