20405349808

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{659}}^1\times {\mathrm{66733}}^1$

素因数の和:67429

約数の個数: 40

約数和(自身を含む): 40961329200

約数和(自身を除く): 20555979392

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 659, 1318, 2636, 5272, 10544, 19111, 38222, 66733, 76444, 133466, 152888, 266932, 305776, 533864, 1067728, 1935257, 3870514, 7741028, 15482056, 30964112, 43977047, 87954094, 175908188, 351816376, 703632752, 1275334363, 2550668726, 5101337452, 10202674904, 20405349808]

約数ペア:

[(1, 20405349808), (2, 10202674904), (4, 5101337452), (8, 2550668726), (16, 1275334363), (29, 703632752), (58, 351816376), (116, 175908188), (232, 87954094), (464, 43977047), (659, 30964112), (1318, 15482056), (2636, 7741028), (5272, 3870514), (10544, 1935257), (19111, 1067728), (38222, 533864), (66733, 305776), (76444, 266932), (133466, 152888)]