68342480

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19867}}^1$

素因数の和:19923

約数の個数: 40

約数和(自身を含む): 162599712

約数和(自身を除く): 94257232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19867, 39734, 79468, 99335, 158936, 198670, 317872, 397340, 794680, 854281, 1589360, 1708562, 3417124, 4271405, 6834248, 8542810, 13668496, 17085620, 34171240, 68342480]

約数ペア:

[(1, 68342480), (2, 34171240), (4, 17085620), (5, 13668496), (8, 8542810), (10, 6834248), (16, 4271405), (20, 3417124), (40, 1708562), (43, 1589360), (80, 854281), (86, 794680), (172, 397340), (215, 317872), (344, 198670), (430, 158936), (688, 99335), (860, 79468), (1720, 39734), (3440, 19867)]