80207867440

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1361}}^1\times {\mathrm{2801}}^1$

素因数の和:4438

約数の個数: 80

約数和(自身を含む): 187396773696

約数和(自身を除く): 107188906256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 1361, 2104, 2630, 2722, 2801, 4208, 5260, 5444, 5602, 6805, 10520, 10888, 11204, 13610, 14005, 21040, 21776, 22408, 27220, 28010, 44816, 54440, 56020, 108880, 112040, 224080, 357943, 715886, 736663, 1431772, 1473326, 1789715, 2863544, 2946652, 3579430, 3683315, 3812161, 5727088, 5893304, 7158860, 7366630, 7624322, 11786608, 14317720, 14733260, 15248644, 19060805, 28635440, 29466520, 30497288, 38121610, 58933040, 60994576, 76243220, 152486440, 304972880, 1002598343, 2005196686, 4010393372, 5012991715, 8020786744, 10025983430, 16041573488, 20051966860, 40103933720, 80207867440]

約数ペア:

[(1, 80207867440), (2, 40103933720), (4, 20051966860), (5, 16041573488), (8, 10025983430), (10, 8020786744), (16, 5012991715), (20, 4010393372), (40, 2005196686), (80, 1002598343), (263, 304972880), (526, 152486440), (1052, 76243220), (1315, 60994576), (1361, 58933040), (2104, 38121610), (2630, 30497288), (2722, 29466520), (2801, 28635440), (4208, 19060805), (5260, 15248644), (5444, 14733260), (5602, 14317720), (6805, 11786608), (10520, 7624322), (10888, 7366630), (11204, 7158860), (13610, 5893304), (14005, 5727088), (21040, 3812161), (21776, 3683315), (22408, 3579430), (27220, 2946652), (28010, 2863544), (44816, 1789715), (54440, 1473326), (56020, 1431772), (108880, 736663), (112040, 715886), (224080, 357943)]