178821968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{11777}}^1$

素因数の和:11871

約数の個数: 40

約数和(自身を含む): 378262248

約数和(自身を除く): 199440280

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 73, 104, 146, 208, 292, 584, 949, 1168, 1898, 3796, 7592, 11777, 15184, 23554, 47108, 94216, 153101, 188432, 306202, 612404, 859721, 1224808, 1719442, 2449616, 3438884, 6877768, 11176373, 13755536, 22352746, 44705492, 89410984, 178821968]

約数ペア:

[(1, 178821968), (2, 89410984), (4, 44705492), (8, 22352746), (13, 13755536), (16, 11176373), (26, 6877768), (52, 3438884), (73, 2449616), (104, 1719442), (146, 1224808), (208, 859721), (292, 612404), (584, 306202), (949, 188432), (1168, 153101), (1898, 94216), (3796, 47108), (7592, 23554), (11777, 15184)]