82499120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{389}}^1$

素因数の和:654

約数の個数: 80

約数和(自身を含む): 210656160

約数和(自身を除く): 128157040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 241, 389, 440, 482, 778, 880, 964, 1205, 1556, 1928, 1945, 2410, 2651, 3112, 3856, 3890, 4279, 4820, 5302, 6224, 7780, 8558, 9640, 10604, 13255, 15560, 17116, 19280, 21208, 21395, 26510, 31120, 34232, 42416, 42790, 53020, 68464, 85580, 93749, 106040, 171160, 187498, 212080, 342320, 374996, 468745, 749992, 937490, 1031239, 1499984, 1874980, 2062478, 3749960, 4124956, 5156195, 7499920, 8249912, 10312390, 16499824, 20624780, 41249560, 82499120]

約数ペア:

[(1, 82499120), (2, 41249560), (4, 20624780), (5, 16499824), (8, 10312390), (10, 8249912), (11, 7499920), (16, 5156195), (20, 4124956), (22, 3749960), (40, 2062478), (44, 1874980), (55, 1499984), (80, 1031239), (88, 937490), (110, 749992), (176, 468745), (220, 374996), (241, 342320), (389, 212080), (440, 187498), (482, 171160), (778, 106040), (880, 93749), (964, 85580), (1205, 68464), (1556, 53020), (1928, 42790), (1945, 42416), (2410, 34232), (2651, 31120), (3112, 26510), (3856, 21395), (3890, 21208), (4279, 19280), (4820, 17116), (5302, 15560), (6224, 13255), (7780, 10604), (8558, 9640)]