77685520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2053}}^1$

素因数の和:2120

約数の個数: 80

約数和(自身を含む): 201719232

約数和(自身を除く): 124033712

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 860, 880, 946, 1720, 1892, 2053, 2365, 3440, 3784, 4106, 4730, 7568, 8212, 9460, 10265, 16424, 18920, 20530, 22583, 32848, 37840, 41060, 45166, 82120, 88279, 90332, 112915, 164240, 176558, 180664, 225830, 353116, 361328, 441395, 451660, 706232, 882790, 903320, 971069, 1412464, 1765580, 1806640, 1942138, 3531160, 3884276, 4855345, 7062320, 7768552, 9710690, 15537104, 19421380, 38842760, 77685520]

約数ペア:

[(1, 77685520), (2, 38842760), (4, 19421380), (5, 15537104), (8, 9710690), (10, 7768552), (11, 7062320), (16, 4855345), (20, 3884276), (22, 3531160), (40, 1942138), (43, 1806640), (44, 1765580), (55, 1412464), (80, 971069), (86, 903320), (88, 882790), (110, 706232), (172, 451660), (176, 441395), (215, 361328), (220, 353116), (344, 225830), (430, 180664), (440, 176558), (473, 164240), (688, 112915), (860, 90332), (880, 88279), (946, 82120), (1720, 45166), (1892, 41060), (2053, 37840), (2365, 32848), (3440, 22583), (3784, 20530), (4106, 18920), (4730, 16424), (7568, 10265), (8212, 9460)]