20129248

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:347

約数の個数: 48

約数和(自身を含む): 41580000

約数和(自身を除く): 21450752

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 109, 116, 199, 218, 232, 398, 436, 464, 796, 872, 928, 1592, 1744, 3161, 3184, 3488, 5771, 6322, 6368, 11542, 12644, 21691, 23084, 25288, 43382, 46168, 50576, 86764, 92336, 101152, 173528, 184672, 347056, 629039, 694112, 1258078, 2516156, 5032312, 10064624, 20129248]

約数ペア:

[(1, 20129248), (2, 10064624), (4, 5032312), (8, 2516156), (16, 1258078), (29, 694112), (32, 629039), (58, 347056), (109, 184672), (116, 173528), (199, 101152), (218, 92336), (232, 86764), (398, 50576), (436, 46168), (464, 43382), (796, 25288), (872, 23084), (928, 21691), (1592, 12644), (1744, 11542), (3161, 6368), (3184, 6322), (3488, 5771)]