85217840

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4457}}^1$

素因数の和:4709

約数の個数: 40

約数和(自身を含む): 199005120

約数和(自身を除く): 113787280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1195, 1912, 2390, 3824, 4457, 4780, 8914, 9560, 17828, 19120, 22285, 35656, 44570, 71312, 89140, 178280, 356560, 1065223, 2130446, 4260892, 5326115, 8521784, 10652230, 17043568, 21304460, 42608920, 85217840]

約数ペア:

[(1, 85217840), (2, 42608920), (4, 21304460), (5, 17043568), (8, 10652230), (10, 8521784), (16, 5326115), (20, 4260892), (40, 2130446), (80, 1065223), (239, 356560), (478, 178280), (956, 89140), (1195, 71312), (1912, 44570), (2390, 35656), (3824, 22285), (4457, 19120), (4780, 17828), (8914, 9560)]