1288760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 3304800

約数和(自身を除く): 2016040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 101, 110, 116, 145, 202, 220, 232, 290, 319, 404, 440, 505, 580, 638, 808, 1010, 1111, 1160, 1276, 1595, 2020, 2222, 2552, 2929, 3190, 4040, 4444, 5555, 5858, 6380, 8888, 11110, 11716, 12760, 14645, 22220, 23432, 29290, 32219, 44440, 58580, 64438, 117160, 128876, 161095, 257752, 322190, 644380, 1288760]

約数ペア:

[(1, 1288760), (2, 644380), (4, 322190), (5, 257752), (8, 161095), (10, 128876), (11, 117160), (20, 64438), (22, 58580), (29, 44440), (40, 32219), (44, 29290), (55, 23432), (58, 22220), (88, 14645), (101, 12760), (110, 11716), (116, 11110), (145, 8888), (202, 6380), (220, 5858), (232, 5555), (290, 4444), (319, 4040), (404, 3190), (440, 2929), (505, 2552), (580, 2222), (638, 2020), (808, 1595), (1010, 1276), (1111, 1160)]