19539040

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4211}}^1$

素因数の和:4255

約数の個数: 48

約数和(自身を含む): 47764080

約数和(自身を除く): 28225040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4211, 4640, 8422, 16844, 21055, 33688, 42110, 67376, 84220, 122119, 134752, 168440, 244238, 336880, 488476, 610595, 673760, 976952, 1221190, 1953904, 2442380, 3907808, 4884760, 9769520, 19539040]

約数ペア:

[(1, 19539040), (2, 9769520), (4, 4884760), (5, 3907808), (8, 2442380), (10, 1953904), (16, 1221190), (20, 976952), (29, 673760), (32, 610595), (40, 488476), (58, 336880), (80, 244238), (116, 168440), (145, 134752), (160, 122119), (232, 84220), (290, 67376), (464, 42110), (580, 33688), (928, 21055), (1160, 16844), (2320, 8422), (4211, 4640)]