78964004

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{31687}}^1$

素因数の和:31787

約数の個数: 24

約数和(自身を含む): 159707520

約数和(自身を除く): 80743516

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 31687, 63374, 126748, 221809, 443618, 887236, 2820143, 5640286, 11280572, 19741001, 39482002, 78964004]

約数ペア:

[(1, 78964004), (2, 39482002), (4, 19741001), (7, 11280572), (14, 5640286), (28, 2820143), (89, 887236), (178, 443618), (356, 221809), (623, 126748), (1246, 63374), (2492, 31687)]