80139620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{364271}}^1$

素因数の和:364291

約数の個数: 24

約数和(自身を含む): 183593088

約数和(自身を除く): 103453468

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 364271, 728542, 1457084, 1821355, 3642710, 4006981, 7285420, 8013962, 16027924, 20034905, 40069810, 80139620]

約数ペア:

[(1, 80139620), (2, 40069810), (4, 20034905), (5, 16027924), (10, 8013962), (11, 7285420), (20, 4006981), (22, 3642710), (44, 1821355), (55, 1457084), (110, 728542), (220, 364271)]