19889180

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{3539}}^1$

素因数の和:3829

約数の個数: 24

約数和(自身を含む): 41927760

約数和(自身を除く): 22038580

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 3539, 5620, 7078, 14156, 17695, 35390, 70780, 994459, 1988918, 3977836, 4972295, 9944590, 19889180]

約数ペア:

[(1, 19889180), (2, 9944590), (4, 4972295), (5, 3977836), (10, 1988918), (20, 994459), (281, 70780), (562, 35390), (1124, 17695), (1405, 14156), (2810, 7078), (3539, 5620)]