199880080

素因数分解:

$2^4\times 5^1\times {\mathrm{1217}}^1\times {\mathrm{2053}}^1$

素因数の和:3283

約数の個数: 40

約数和(自身を含む): 465329592

約数和(自身を除く): 265449512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1217, 2053, 2434, 4106, 4868, 6085, 8212, 9736, 10265, 12170, 16424, 19472, 20530, 24340, 32848, 41060, 48680, 82120, 97360, 164240, 2498501, 4997002, 9994004, 12492505, 19988008, 24985010, 39976016, 49970020, 99940040, 199880080]

約数ペア:

[(1, 199880080), (2, 99940040), (4, 49970020), (5, 39976016), (8, 24985010), (10, 19988008), (16, 12492505), (20, 9994004), (40, 4997002), (80, 2498501), (1217, 164240), (2053, 97360), (2434, 82120), (4106, 48680), (4868, 41060), (6085, 32848), (8212, 24340), (9736, 20530), (10265, 19472), (12170, 16424)]