20183972080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{698891}}^1$

素因数の和:698942

約数の個数: 60

約数和(自身を含む): 49527680472

約数和(自身を除く): 29343708392

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 1444, 1520, 1805, 2888, 3610, 5776, 7220, 14440, 28880, 698891, 1397782, 2795564, 3494455, 5591128, 6988910, 11182256, 13278929, 13977820, 26557858, 27955640, 53115716, 55911280, 66394645, 106231432, 132789290, 212462864, 252299651, 265578580, 504599302, 531157160, 1009198604, 1062314320, 1261498255, 2018397208, 2522996510, 4036794416, 5045993020, 10091986040, 20183972080]

約数ペア:

[(1, 20183972080), (2, 10091986040), (4, 5045993020), (5, 4036794416), (8, 2522996510), (10, 2018397208), (16, 1261498255), (19, 1062314320), (20, 1009198604), (38, 531157160), (40, 504599302), (76, 265578580), (80, 252299651), (95, 212462864), (152, 132789290), (190, 106231432), (304, 66394645), (361, 55911280), (380, 53115716), (722, 27955640), (760, 26557858), (1444, 13977820), (1520, 13278929), (1805, 11182256), (2888, 6988910), (3610, 5591128), (5776, 3494455), (7220, 2795564), (14440, 1397782), (28880, 698891)]