65811040

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1721}}^1$

素因数の和:1975

約数の個数: 48

約数和(自身を含む): 156219840

約数和(自身を除く): 90408800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 956, 1195, 1721, 1912, 2390, 3442, 3824, 4780, 6884, 7648, 8605, 9560, 13768, 17210, 19120, 27536, 34420, 38240, 55072, 68840, 137680, 275360, 411319, 822638, 1645276, 2056595, 3290552, 4113190, 6581104, 8226380, 13162208, 16452760, 32905520, 65811040]

約数ペア:

[(1, 65811040), (2, 32905520), (4, 16452760), (5, 13162208), (8, 8226380), (10, 6581104), (16, 4113190), (20, 3290552), (32, 2056595), (40, 1645276), (80, 822638), (160, 411319), (239, 275360), (478, 137680), (956, 68840), (1195, 55072), (1721, 38240), (1912, 34420), (2390, 27536), (3442, 19120), (3824, 17210), (4780, 13768), (6884, 9560), (7648, 8605)]