393971805

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{2099}}^1$

素因数の和:2250

約数の個数: 48

約数和(自身を含む): 706305600

約数和(自身を除く): 312333795

約数列:

[1, 3, 5, 9, 15, 43, 45, 97, 129, 215, 291, 387, 485, 645, 873, 1455, 1935, 2099, 4171, 4365, 6297, 10495, 12513, 18891, 20855, 31485, 37539, 62565, 90257, 94455, 187695, 203603, 270771, 451285, 610809, 812313, 1018015, 1353855, 1832427, 3054045, 4061565, 8754929, 9162135, 26264787, 43774645, 78794361, 131323935, 393971805]

約数ペア:

[(1, 393971805), (3, 131323935), (5, 78794361), (9, 43774645), (15, 26264787), (43, 9162135), (45, 8754929), (97, 4061565), (129, 3054045), (215, 1832427), (291, 1353855), (387, 1018015), (485, 812313), (645, 610809), (873, 451285), (1455, 270771), (1935, 203603), (2099, 187695), (4171, 94455), (4365, 90257), (6297, 62565), (10495, 37539), (12513, 31485), (18891, 20855)]