251489210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{28289}}^1$

素因数の和:28430

約数の個数: 32

約数和(自身を含む): 521441280

約数和(自身を除く): 269952070

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 127, 254, 635, 889, 1270, 1778, 4445, 8890, 28289, 56578, 141445, 198023, 282890, 396046, 990115, 1980230, 3592703, 7185406, 17963515, 25148921, 35927030, 50297842, 125744605, 251489210]

約数ペア:

[(1, 251489210), (2, 125744605), (5, 50297842), (7, 35927030), (10, 25148921), (14, 17963515), (35, 7185406), (70, 3592703), (127, 1980230), (254, 990115), (635, 396046), (889, 282890), (1270, 198023), (1778, 141445), (4445, 56578), (8890, 28289)]