204981405

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31271}}^1$

素因数の和:31321

約数の個数: 32

約数和(自身を含む): 360253440

約数和(自身を除く): 155272035

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1311, 2185, 6555, 31271, 93813, 156355, 469065, 594149, 719233, 1782447, 2157699, 2970745, 3596165, 8912235, 10788495, 13665427, 40996281, 68327135, 204981405]

約数ペア:

[(1, 204981405), (3, 68327135), (5, 40996281), (15, 13665427), (19, 10788495), (23, 8912235), (57, 3596165), (69, 2970745), (95, 2157699), (115, 1782447), (285, 719233), (345, 594149), (437, 469065), (1311, 156355), (2185, 93813), (6555, 31271)]