208047855

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1\times {\mathrm{673}}^1$

素因数の和:1275

約数の個数: 32

約数和(自身を含む): 342995904

約数和(自身を除く): 134948049

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 557, 673, 1671, 2019, 2785, 3365, 8355, 10095, 20609, 24901, 61827, 74703, 103045, 124505, 309135, 373515, 374861, 1124583, 1874305, 5622915, 13869857, 41609571, 69349285, 208047855]

約数ペア:

[(1, 208047855), (3, 69349285), (5, 41609571), (15, 13869857), (37, 5622915), (111, 1874305), (185, 1124583), (555, 374861), (557, 373515), (673, 309135), (1671, 124505), (2019, 103045), (2785, 74703), (3365, 61827), (8355, 24901), (10095, 20609)]