80043280

素因数分解:

$2^4\times 5^1\times {\mathrm{1000541}}^1$

素因数の和:1000554

約数の個数: 20

約数和(自身を含む): 186100812

約数和(自身を除く): 106057532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1000541, 2001082, 4002164, 5002705, 8004328, 10005410, 16008656, 20010820, 40021640, 80043280]

約数ペア:

[(1, 80043280), (2, 40021640), (4, 20010820), (5, 16008656), (8, 10005410), (10, 8004328), (16, 5002705), (20, 4002164), (40, 2001082), (80, 1000541)]