20739492064

素因数分解:

$2^5\times {\mathrm{79}}^2\times {\mathrm{113}}^1\times {\mathrm{919}}^1$

素因数の和:1200

約数の個数: 72

約数和(自身を含む): 41765628240

約数和(自身を除く): 21026136176

約数列:

[1, 2, 4, 8, 16, 32, 79, 113, 158, 226, 316, 452, 632, 904, 919, 1264, 1808, 1838, 2528, 3616, 3676, 6241, 7352, 8927, 12482, 14704, 17854, 24964, 29408, 35708, 49928, 71416, 72601, 99856, 103847, 142832, 145202, 199712, 207694, 285664, 290404, 415388, 580808, 705233, 830776, 1161616, 1410466, 1661552, 2323232, 2820932, 3323104, 5641864, 5735479, 8203913, 11283728, 11470958, 16407826, 22567456, 22941916, 32815652, 45883832, 65631304, 91767664, 131262608, 183535328, 262525216, 648109127, 1296218254, 2592436508, 5184873016, 10369746032, 20739492064]

約数ペア:

[(1, 20739492064), (2, 10369746032), (4, 5184873016), (8, 2592436508), (16, 1296218254), (32, 648109127), (79, 262525216), (113, 183535328), (158, 131262608), (226, 91767664), (316, 65631304), (452, 45883832), (632, 32815652), (904, 22941916), (919, 22567456), (1264, 16407826), (1808, 11470958), (1838, 11283728), (2528, 8203913), (3616, 5735479), (3676, 5641864), (6241, 3323104), (7352, 2820932), (8927, 2323232), (12482, 1661552), (14704, 1410466), (17854, 1161616), (24964, 830776), (29408, 705233), (35708, 580808), (49928, 415388), (71416, 290404), (72601, 285664), (99856, 207694), (103847, 199712), (142832, 145202)]