19214120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11171}}^1$

素因数の和:11225

約数の個数: 32

約数和(自身を含む): 44241120

約数和(自身を除く): 25027000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 11171, 22342, 44684, 55855, 89368, 111710, 223420, 446840, 480353, 960706, 1921412, 2401765, 3842824, 4803530, 9607060, 19214120]

約数ペア:

[(1, 19214120), (2, 9607060), (4, 4803530), (5, 3842824), (8, 2401765), (10, 1921412), (20, 960706), (40, 480353), (43, 446840), (86, 223420), (172, 111710), (215, 89368), (344, 55855), (430, 44684), (860, 22342), (1720, 11171)]