18765940

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1487}}^1$

素因数の和:2127

約数の個数: 24

約数和(自身を含む): 39497472

約数和(自身を除く): 20731532

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 1487, 2524, 2974, 3155, 5948, 6310, 7435, 12620, 14870, 29740, 938297, 1876594, 3753188, 4691485, 9382970, 18765940]

約数ペア:

[(1, 18765940), (2, 9382970), (4, 4691485), (5, 3753188), (10, 1876594), (20, 938297), (631, 29740), (1262, 14870), (1487, 12620), (2524, 7435), (2974, 6310), (3155, 5948)]