79943840

素因数分解:

$2^5\times 5^1\times {\mathrm{499649}}^1$

素因数の和:499664

約数の個数: 24

約数和(自身を含む): 188867700

約数和(自身を除く): 108923860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 499649, 999298, 1998596, 2498245, 3997192, 4996490, 7994384, 9992980, 15988768, 19985960, 39971920, 79943840]

約数ペア:

[(1, 79943840), (2, 39971920), (4, 19985960), (5, 15988768), (8, 9992980), (10, 7994384), (16, 4996490), (20, 3997192), (32, 2498245), (40, 1998596), (80, 999298), (160, 499649)]