56671640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15919}}^1$

素因数の和:16019

約数の個数: 32

約数和(自身を含む): 128952000

約数和(自身を除く): 72280360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 15919, 31838, 63676, 79595, 127352, 159190, 318380, 636760, 1416791, 2833582, 5667164, 7083955, 11334328, 14167910, 28335820, 56671640]

約数ペア:

[(1, 56671640), (2, 28335820), (4, 14167910), (5, 11334328), (8, 7083955), (10, 5667164), (20, 2833582), (40, 1416791), (89, 636760), (178, 318380), (356, 159190), (445, 127352), (712, 79595), (890, 63676), (1780, 31838), (3560, 15919)]