18785060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1231}}^1$

素因数の和:1356

約数の個数: 48

約数和(自身を含む): 45534720

約数和(自身を除く): 26749660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1231, 1526, 2180, 2462, 3052, 3815, 4924, 6155, 7630, 8617, 12310, 15260, 17234, 24620, 34468, 43085, 86170, 134179, 172340, 268358, 536716, 670895, 939253, 1341790, 1878506, 2683580, 3757012, 4696265, 9392530, 18785060]

約数ペア:

[(1, 18785060), (2, 9392530), (4, 4696265), (5, 3757012), (7, 2683580), (10, 1878506), (14, 1341790), (20, 939253), (28, 670895), (35, 536716), (70, 268358), (109, 172340), (140, 134179), (218, 86170), (436, 43085), (545, 34468), (763, 24620), (1090, 17234), (1231, 15260), (1526, 12310), (2180, 8617), (2462, 7630), (3052, 6155), (3815, 4924)]