78170140

素因数分解:

$2^2\times 5^1\times {\mathrm{919}}^1\times {\mathrm{4253}}^1$

素因数の和:5181

約数の個数: 24

約数和(自身を含む): 164374560

約数和(自身を除く): 86204420

約数列:

[1, 2, 4, 5, 10, 20, 919, 1838, 3676, 4253, 4595, 8506, 9190, 17012, 18380, 21265, 42530, 85060, 3908507, 7817014, 15634028, 19542535, 39085070, 78170140]

約数ペア:

[(1, 78170140), (2, 39085070), (4, 19542535), (5, 15634028), (10, 7817014), (20, 3908507), (919, 85060), (1838, 42530), (3676, 21265), (4253, 18380), (4595, 17012), (8506, 9190)]