206443280

素因数分解:

$2^4\times 5^1\times {\mathrm{2580541}}^1$

素因数の和:2580554

約数の個数: 20

約数和(自身を含む): 479980812

約数和(自身を除く): 273537532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2580541, 5161082, 10322164, 12902705, 20644328, 25805410, 41288656, 51610820, 103221640, 206443280]

約数ペア:

[(1, 206443280), (2, 103221640), (4, 51610820), (5, 41288656), (8, 25805410), (10, 20644328), (16, 12902705), (20, 10322164), (40, 5161082), (80, 2580541)]