18270280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2837}}^1$

素因数の和:2878

約数の個数: 64

約数和(自身を含む): 49040640

約数和(自身を除く): 30770360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 2837, 3220, 5674, 6440, 11348, 14185, 19859, 22696, 28370, 39718, 56740, 65251, 79436, 99295, 113480, 130502, 158872, 198590, 261004, 326255, 397180, 456757, 522008, 652510, 794360, 913514, 1305020, 1827028, 2283785, 2610040, 3654056, 4567570, 9135140, 18270280]

約数ペア:

[(1, 18270280), (2, 9135140), (4, 4567570), (5, 3654056), (7, 2610040), (8, 2283785), (10, 1827028), (14, 1305020), (20, 913514), (23, 794360), (28, 652510), (35, 522008), (40, 456757), (46, 397180), (56, 326255), (70, 261004), (92, 198590), (115, 158872), (140, 130502), (161, 113480), (184, 99295), (230, 79436), (280, 65251), (322, 56740), (460, 39718), (644, 28370), (805, 22696), (920, 19859), (1288, 14185), (1610, 11348), (2837, 6440), (3220, 5674)]