165204560

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{9787}}^1$

素因数の和:10011

約数の個数: 40

約数和(自身を含む): 385960416

約数和(自身を除く): 220755856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1688, 2110, 3376, 4220, 8440, 9787, 16880, 19574, 39148, 48935, 78296, 97870, 156592, 195740, 391480, 782960, 2065057, 4130114, 8260228, 10325285, 16520456, 20650570, 33040912, 41301140, 82602280, 165204560]

約数ペア:

[(1, 165204560), (2, 82602280), (4, 41301140), (5, 33040912), (8, 20650570), (10, 16520456), (16, 10325285), (20, 8260228), (40, 4130114), (80, 2065057), (211, 782960), (422, 391480), (844, 195740), (1055, 156592), (1688, 97870), (2110, 78296), (3376, 48935), (4220, 39148), (8440, 19574), (9787, 16880)]