161295260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{164587}}^1$

素因数の和:164610

約数の個数: 36

約数和(自身を含む): 394023672

約数和(自身を除く): 232728412

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 164587, 329174, 658348, 822935, 1152109, 1645870, 2304218, 3291740, 4608436, 5760545, 8064763, 11521090, 16129526, 23042180, 32259052, 40323815, 80647630, 161295260]

約数ペア:

[(1, 161295260), (2, 80647630), (4, 40323815), (5, 32259052), (7, 23042180), (10, 16129526), (14, 11521090), (20, 8064763), (28, 5760545), (35, 4608436), (49, 3291740), (70, 2304218), (98, 1645870), (140, 1152109), (196, 822935), (245, 658348), (490, 329174), (980, 164587)]