80356180

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{12919}}^1$

素因数の和:13239

約数の個数: 24

約数和(自身を含む): 169303680

約数和(自身を除く): 88947500

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 12919, 25838, 51676, 64595, 129190, 258380, 4017809, 8035618, 16071236, 20089045, 40178090, 80356180]

約数ペア:

[(1, 80356180), (2, 40178090), (4, 20089045), (5, 16071236), (10, 8035618), (20, 4017809), (311, 258380), (622, 129190), (1244, 64595), (1555, 51676), (3110, 25838), (6220, 12919)]