78876140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{563401}}^1$

素因数の和:563417

約数の個数: 24

約数和(自身を含む): 189303072

約数和(自身を除く): 110426932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 563401, 1126802, 2253604, 2817005, 3943807, 5634010, 7887614, 11268020, 15775228, 19719035, 39438070, 78876140]

約数ペア:

[(1, 78876140), (2, 39438070), (4, 19719035), (5, 15775228), (7, 11268020), (10, 7887614), (14, 5634010), (20, 3943807), (28, 2817005), (35, 2253604), (70, 1126802), (140, 563401)]