8186440

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1987}}^1$

素因数の和:2101

約数の個数: 32

約数和(自身を含む): 18607680

約数和(自身を除く): 10421240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 1987, 2060, 3974, 4120, 7948, 9935, 15896, 19870, 39740, 79480, 204661, 409322, 818644, 1023305, 1637288, 2046610, 4093220, 8186440]

約数ペア:

[(1, 8186440), (2, 4093220), (4, 2046610), (5, 1637288), (8, 1023305), (10, 818644), (20, 409322), (40, 204661), (103, 79480), (206, 39740), (412, 19870), (515, 15896), (824, 9935), (1030, 7948), (1987, 4120), (2060, 3974)]