678794020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1996453}}^1$

素因数の和:1996479

約数の個数: 24

約数和(自身を含む): 1509319224

約数和(自身を除く): 830525204

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1996453, 3992906, 7985812, 9982265, 19964530, 33939701, 39929060, 67879402, 135758804, 169698505, 339397010, 678794020]

約数ペア:

[(1, 678794020), (2, 339397010), (4, 169698505), (5, 135758804), (10, 67879402), (17, 39929060), (20, 33939701), (34, 19964530), (68, 9982265), (85, 7985812), (170, 3992906), (340, 1996453)]