25520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1$

素因数の和:53

約数の個数: 40

約数和(自身を含む): 66960

約数和(自身を除く): 41440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 880, 1160, 1276, 1595, 2320, 2552, 3190, 5104, 6380, 12760, 25520]

約数ペア:

[(1, 25520), (2, 12760), (4, 6380), (5, 5104), (8, 3190), (10, 2552), (11, 2320), (16, 1595), (20, 1276), (22, 1160), (29, 880), (40, 638), (44, 580), (55, 464), (58, 440), (80, 319), (88, 290), (110, 232), (116, 220), (145, 176)]