1643001520

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{211727}}^1$

素因数の和:211837

約数の個数: 40

約数和(自身を含む): 3859377984

約数和(自身を除く): 2216376464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 211727, 423454, 846908, 1058635, 1693816, 2117270, 3387632, 4234540, 8469080, 16938160, 20537519, 41075038, 82150076, 102687595, 164300152, 205375190, 328600304, 410750380, 821500760, 1643001520]

約数ペア:

[(1, 1643001520), (2, 821500760), (4, 410750380), (5, 328600304), (8, 205375190), (10, 164300152), (16, 102687595), (20, 82150076), (40, 41075038), (80, 20537519), (97, 16938160), (194, 8469080), (388, 4234540), (485, 3387632), (776, 2117270), (970, 1693816), (1552, 1058635), (1940, 846908), (3880, 423454), (7760, 211727)]