220178680

素因数分解:

$2^3\times 5^1\times {\mathrm{673}}^1\times {\mathrm{8179}}^1$

素因数の和:8863

約数の個数: 32

約数和(自身を含む): 496198800

約数和(自身を除く): 276020120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 673, 1346, 2692, 3365, 5384, 6730, 8179, 13460, 16358, 26920, 32716, 40895, 65432, 81790, 163580, 327160, 5504467, 11008934, 22017868, 27522335, 44035736, 55044670, 110089340, 220178680]

約数ペア:

[(1, 220178680), (2, 110089340), (4, 55044670), (5, 44035736), (8, 27522335), (10, 22017868), (20, 11008934), (40, 5504467), (673, 327160), (1346, 163580), (2692, 81790), (3365, 65432), (5384, 40895), (6730, 32716), (8179, 26920), (13460, 16358)]