78856520

素因数分解:

$2^3\times 5^1\times {\mathrm{233}}^1\times {\mathrm{8461}}^1$

素因数の和:8705

約数の個数: 32

約数和(自身を含む): 178209720

約数和(自身を除く): 99353200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 233, 466, 932, 1165, 1864, 2330, 4660, 8461, 9320, 16922, 33844, 42305, 67688, 84610, 169220, 338440, 1971413, 3942826, 7885652, 9857065, 15771304, 19714130, 39428260, 78856520]

約数ペア:

[(1, 78856520), (2, 39428260), (4, 19714130), (5, 15771304), (8, 9857065), (10, 7885652), (20, 3942826), (40, 1971413), (233, 338440), (466, 169220), (932, 84610), (1165, 67688), (1864, 42305), (2330, 33844), (4660, 16922), (8461, 9320)]