138786440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{266897}}^1$

素因数の和:266921

約数の個数: 32

約数和(自身を含む): 336291480

約数和(自身を除く): 197505040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 266897, 533794, 1067588, 1334485, 2135176, 2668970, 3469661, 5337940, 6939322, 10675880, 13878644, 17348305, 27757288, 34696610, 69393220, 138786440]

約数ペア:

[(1, 138786440), (2, 69393220), (4, 34696610), (5, 27757288), (8, 17348305), (10, 13878644), (13, 10675880), (20, 6939322), (26, 5337940), (40, 3469661), (52, 2668970), (65, 2135176), (104, 1334485), (130, 1067588), (260, 533794), (520, 266897)]