68939312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{769}}^1$

素因数の和:1221

約数の個数: 40

約数和(自身を含む): 144365760

約数和(自身を除く): 75426448

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 431, 769, 862, 1538, 1724, 3076, 3448, 5603, 6152, 6896, 9997, 11206, 12304, 19994, 22412, 39988, 44824, 79976, 89648, 159952, 331439, 662878, 1325756, 2651512, 4308707, 5303024, 8617414, 17234828, 34469656, 68939312]

約数ペア:

[(1, 68939312), (2, 34469656), (4, 17234828), (8, 8617414), (13, 5303024), (16, 4308707), (26, 2651512), (52, 1325756), (104, 662878), (208, 331439), (431, 159952), (769, 89648), (862, 79976), (1538, 44824), (1724, 39988), (3076, 22412), (3448, 19994), (5603, 12304), (6152, 11206), (6896, 9997)]