80715760

素因数分解:

$2^4\times 5^1\times {\mathrm{1008947}}^1$

素因数の和:1008960

約数の個数: 20

約数和(自身を含む): 187664328

約数和(自身を除く): 106948568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1008947, 2017894, 4035788, 5044735, 8071576, 10089470, 16143152, 20178940, 40357880, 80715760]

約数ペア:

[(1, 80715760), (2, 40357880), (4, 20178940), (5, 16143152), (8, 10089470), (10, 8071576), (16, 5044735), (20, 4035788), (40, 2017894), (80, 1008947)]