20406560

素因数分解:

$2^5\times 5^1\times {\mathrm{127541}}^1$

素因数の和:127556

約数の個数: 24

約数和(自身を含む): 48210876

約数和(自身を除く): 27804316

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 127541, 255082, 510164, 637705, 1020328, 1275410, 2040656, 2550820, 4081312, 5101640, 10203280, 20406560]

約数ペア:

[(1, 20406560), (2, 10203280), (4, 5101640), (5, 4081312), (8, 2550820), (10, 2040656), (16, 1275410), (20, 1020328), (32, 637705), (40, 510164), (80, 255082), (160, 127541)]