687789520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{26951}}^1$

素因数の和:27004

約数の個数: 80

約数和(自身を含む): 1804705920

約数和(自身を除く): 1116916400

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, 26951, 53902, 107804, 134755, 215608, 269510, 296461, 431216, 539020, 592922, 781579, 1078040, 1185844, 1482305, 1563158, 2156080, 2371688, 2964610, 3126316, 3907895, 4743376, 5929220, 6252632, 7815790, 8597369, 11858440, 12505264, 15631580, 17194738, 23716880, 31263160, 34389476, 42986845, 62526320, 68778952, 85973690, 137557904, 171947380, 343894760, 687789520]

約数ペア:

[(1, 687789520), (2, 343894760), (4, 171947380), (5, 137557904), (8, 85973690), (10, 68778952), (11, 62526320), (16, 42986845), (20, 34389476), (22, 31263160), (29, 23716880), (40, 17194738), (44, 15631580), (55, 12505264), (58, 11858440), (80, 8597369), (88, 7815790), (110, 6252632), (116, 5929220), (145, 4743376), (176, 3907895), (220, 3126316), (232, 2964610), (290, 2371688), (319, 2156080), (440, 1563158), (464, 1482305), (580, 1185844), (638, 1078040), (880, 781579), (1160, 592922), (1276, 539020), (1595, 431216), (2320, 296461), (2552, 269510), (3190, 215608), (5104, 134755), (6380, 107804), (12760, 53902), (25520, 26951)]