406880

素因数分解:

$2^5\times 5^1\times {\mathrm{2543}}^1$

素因数の和:2558

約数の個数: 24

約数和(自身を含む): 961632

約数和(自身を除く): 554752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 2543, 5086, 10172, 12715, 20344, 25430, 40688, 50860, 81376, 101720, 203440, 406880]

約数ペア:

[(1, 406880), (2, 203440), (4, 101720), (5, 81376), (8, 50860), (10, 40688), (16, 25430), (20, 20344), (32, 12715), (40, 10172), (80, 5086), (160, 2543)]