78261940

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{36571}}^1$

素因数の和:36687

約数の個数: 24

約数和(自身を含む): 165890592

約数和(自身を除く): 87628652

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 36571, 73142, 146284, 182855, 365710, 731420, 3913097, 7826194, 15652388, 19565485, 39130970, 78261940]

約数ペア:

[(1, 78261940), (2, 39130970), (4, 19565485), (5, 15652388), (10, 7826194), (20, 3913097), (107, 731420), (214, 365710), (428, 182855), (535, 146284), (1070, 73142), (2140, 36571)]