74947280

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21787}}^1$

素因数の和:21843

約数の個数: 40

約数和(自身を含む): 178312992

約数和(自身を除く): 103365712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 21787, 43574, 87148, 108935, 174296, 217870, 348592, 435740, 871480, 936841, 1742960, 1873682, 3747364, 4684205, 7494728, 9368410, 14989456, 18736820, 37473640, 74947280]

約数ペア:

[(1, 74947280), (2, 37473640), (4, 18736820), (5, 14989456), (8, 9368410), (10, 7494728), (16, 4684205), (20, 3747364), (40, 1873682), (43, 1742960), (80, 936841), (86, 871480), (172, 435740), (215, 348592), (344, 217870), (430, 174296), (688, 108935), (860, 87148), (1720, 43574), (3440, 21787)]