20135256841

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{43}}^2\times {\mathrm{769}}^1$

素因数の和:903

約数の個数: 54

約数和(自身を含む): 25506717390

約数和(自身を除く): 5371460549

約数列:

[1, 7, 17, 43, 49, 119, 289, 301, 731, 769, 833, 1849, 2023, 2107, 5117, 5383, 12427, 12943, 13073, 14161, 31433, 33067, 35819, 37681, 86989, 90601, 91511, 220031, 222241, 231469, 534361, 562139, 608923, 640577, 1421881, 1540217, 1555687, 1620283, 3740527, 3934973, 9556363, 9953167, 10889809, 24171977, 26183689, 27544811, 66894541, 69672169, 169203839, 410923609, 468261787, 1184426873, 2876465263, 20135256841]

約数ペア:

[(1, 20135256841), (7, 2876465263), (17, 1184426873), (43, 468261787), (49, 410923609), (119, 169203839), (289, 69672169), (301, 66894541), (731, 27544811), (769, 26183689), (833, 24171977), (1849, 10889809), (2023, 9953167), (2107, 9556363), (5117, 3934973), (5383, 3740527), (12427, 1620283), (12943, 1555687), (13073, 1540217), (14161, 1421881), (31433, 640577), (33067, 608923), (35819, 562139), (37681, 534361), (86989, 231469), (90601, 222241), (91511, 220031)]