205651984

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{210709}}^1$

素因数の和:210778

約数の個数: 20

約数和(自身を含む): 404984620

約数和(自身を除く): 199332636

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 210709, 421418, 842836, 1685672, 3371344, 12853249, 25706498, 51412996, 102825992, 205651984]

約数ペア:

[(1, 205651984), (2, 102825992), (4, 51412996), (8, 25706498), (16, 12853249), (61, 3371344), (122, 1685672), (244, 842836), (488, 421418), (976, 210709)]