19891940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{26881}}^1$

素因数の和:26927

約数の個数: 24

約数和(自身を含む): 42903672

約数和(自身を除く): 23011732

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 26881, 53762, 107524, 134405, 268810, 537620, 994597, 1989194, 3978388, 4972985, 9945970, 19891940]

約数ペア:

[(1, 19891940), (2, 9945970), (4, 4972985), (5, 3978388), (10, 1989194), (20, 994597), (37, 537620), (74, 268810), (148, 134405), (185, 107524), (370, 53762), (740, 26881)]