68216560

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7823}}^1$

素因数の和:7945

約数の個数: 40

約数和(自身を含む): 160079040

約数和(自身を除く): 91862480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 7823, 8720, 15646, 31292, 39115, 62584, 78230, 125168, 156460, 312920, 625840, 852707, 1705414, 3410828, 4263535, 6821656, 8527070, 13643312, 17054140, 34108280, 68216560]

約数ペア:

[(1, 68216560), (2, 34108280), (4, 17054140), (5, 13643312), (8, 8527070), (10, 6821656), (16, 4263535), (20, 3410828), (40, 1705414), (80, 852707), (109, 625840), (218, 312920), (436, 156460), (545, 125168), (872, 78230), (1090, 62584), (1744, 39115), (2180, 31292), (4360, 15646), (7823, 8720)]