321036138680

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{42020437}}^1$

素因数の和:42020639

約数の個数: 32

約数和(自身を含む): 726113168640

約数和(自身を除く): 405077029960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 42020437, 84040874, 168081748, 210102185, 336163496, 420204370, 840408740, 1680817480, 8025903467, 16051806934, 32103613868, 40129517335, 64207227736, 80259034670, 160518069340, 321036138680]

約数ペア:

[(1, 321036138680), (2, 160518069340), (4, 80259034670), (5, 64207227736), (8, 40129517335), (10, 32103613868), (20, 16051806934), (40, 8025903467), (191, 1680817480), (382, 840408740), (764, 420204370), (955, 336163496), (1528, 210102185), (1910, 168081748), (3820, 84040874), (7640, 42020437)]