18947740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3301}}^1$

素因数の和:3358

約数の個数: 48

約数和(自身を含む): 46597824

約数和(自身を除く): 27650084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 3301, 5740, 6602, 13204, 16505, 23107, 33010, 46214, 66020, 92428, 115535, 135341, 231070, 270682, 462140, 541364, 676705, 947387, 1353410, 1894774, 2706820, 3789548, 4736935, 9473870, 18947740]

約数ペア:

[(1, 18947740), (2, 9473870), (4, 4736935), (5, 3789548), (7, 2706820), (10, 1894774), (14, 1353410), (20, 947387), (28, 676705), (35, 541364), (41, 462140), (70, 270682), (82, 231070), (140, 135341), (164, 115535), (205, 92428), (287, 66020), (410, 46214), (574, 33010), (820, 23107), (1148, 16505), (1435, 13204), (2870, 6602), (3301, 5740)]