205737584

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{989123}}^1$

素因数の和:989144

約数の個数: 20

約数和(自身を含む): 429279816

約数和(自身を除く): 223542232

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 989123, 1978246, 3956492, 7912984, 12858599, 15825968, 25717198, 51434396, 102868792, 205737584]

約数ペア:

[(1, 205737584), (2, 102868792), (4, 51434396), (8, 25717198), (13, 15825968), (16, 12858599), (26, 7912984), (52, 3956492), (104, 1978246), (208, 989123)]