204549680

素因数分解:

$2^4\times 5^1\times {\mathrm{2556871}}^1$

素因数の和:2556884

約数の個数: 20

約数和(自身を含む): 475578192

約数和(自身を除く): 271028512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2556871, 5113742, 10227484, 12784355, 20454968, 25568710, 40909936, 51137420, 102274840, 204549680]

約数ペア:

[(1, 204549680), (2, 102274840), (4, 51137420), (5, 40909936), (8, 25568710), (10, 20454968), (16, 12784355), (20, 10227484), (40, 5113742), (80, 2556871)]