217656240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{906901}}^1$

素因数の和:906917

約数の個数: 40

約数和(自身を含む): 674735088

約数和(自身を除く): 457078848

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 906901, 1813802, 2720703, 3627604, 4534505, 5441406, 7255208, 9069010, 10882812, 13603515, 14510416, 18138020, 21765624, 27207030, 36276040, 43531248, 54414060, 72552080, 108828120, 217656240]

約数ペア:

[(1, 217656240), (2, 108828120), (3, 72552080), (4, 54414060), (5, 43531248), (6, 36276040), (8, 27207030), (10, 21765624), (12, 18138020), (15, 14510416), (16, 13603515), (20, 10882812), (24, 9069010), (30, 7255208), (40, 5441406), (48, 4534505), (60, 3627604), (80, 2720703), (120, 1813802), (240, 906901)]