20212843490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{676241}}^1$

素因数の和:676323

約数の個数: 48

約数和(自身を含む): 43017106104

約数和(自身を除く): 22804262614

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 98, 122, 245, 305, 427, 490, 610, 854, 2135, 2989, 4270, 5978, 14945, 29890, 676241, 1352482, 3381205, 4733687, 6762410, 9467374, 23668435, 33135809, 41250701, 47336870, 66271618, 82501402, 165679045, 206253505, 288754907, 331358090, 412507010, 577509814, 1443774535, 2021284349, 2887549070, 4042568698, 10106421745, 20212843490]

約数ペア:

[(1, 20212843490), (2, 10106421745), (5, 4042568698), (7, 2887549070), (10, 2021284349), (14, 1443774535), (35, 577509814), (49, 412507010), (61, 331358090), (70, 288754907), (98, 206253505), (122, 165679045), (245, 82501402), (305, 66271618), (427, 47336870), (490, 41250701), (610, 33135809), (854, 23668435), (2135, 9467374), (2989, 6762410), (4270, 4733687), (5978, 3381205), (14945, 1352482), (29890, 676241)]