18227020

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2657}}^1$

素因数の和:2687

約数の個数: 48

約数和(自身を含む): 44654400

約数和(自身を除く): 26427380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2657, 3430, 5314, 6860, 10628, 13285, 18599, 26570, 37198, 53140, 74396, 92995, 130193, 185990, 260386, 371980, 520772, 650965, 911351, 1301930, 1822702, 2603860, 3645404, 4556755, 9113510, 18227020]

約数ペア:

[(1, 18227020), (2, 9113510), (4, 4556755), (5, 3645404), (7, 2603860), (10, 1822702), (14, 1301930), (20, 911351), (28, 650965), (35, 520772), (49, 371980), (70, 260386), (98, 185990), (140, 130193), (196, 92995), (245, 74396), (343, 53140), (490, 37198), (686, 26570), (980, 18599), (1372, 13285), (1715, 10628), (2657, 6860), (3430, 5314)]