204865660

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{78193}}^1$

素因数の和:78333

約数の個数: 24

約数和(自身を含む): 433507536

約数和(自身を除く): 228641876

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 78193, 156386, 312772, 390965, 781930, 1563860, 10243283, 20486566, 40973132, 51216415, 102432830, 204865660]

約数ペア:

[(1, 204865660), (2, 102432830), (4, 51216415), (5, 40973132), (10, 20486566), (20, 10243283), (131, 1563860), (262, 781930), (524, 390965), (655, 312772), (1310, 156386), (2620, 78193)]