406670240

素因数分解:

$2^5\times 5^1\times {\mathrm{2541689}}^1$

素因数の和:2541704

約数の個数: 24

約数和(自身を含む): 960758820

約数和(自身を除く): 554088580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 2541689, 5083378, 10166756, 12708445, 20333512, 25416890, 40667024, 50833780, 81334048, 101667560, 203335120, 406670240]

約数ペア:

[(1, 406670240), (2, 203335120), (4, 101667560), (5, 81334048), (8, 50833780), (10, 40667024), (16, 25416890), (20, 20333512), (32, 12708445), (40, 10166756), (80, 5083378), (160, 2541689)]