8420240

素因数分解:

$2^4\times 5^1\times {\mathrm{105253}}^1$

素因数の和:105266

約数の個数: 20

約数和(自身を含む): 19577244

約数和(自身を除く): 11157004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 105253, 210506, 421012, 526265, 842024, 1052530, 1684048, 2105060, 4210120, 8420240]

約数ペア:

[(1, 8420240), (2, 4210120), (4, 2105060), (5, 1684048), (8, 1052530), (10, 842024), (16, 526265), (20, 421012), (40, 210506), (80, 105253)]