77490820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 96

約数和(自身を含む): 185939712

約数和(自身を除く): 108448892

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 71, 82, 110, 121, 142, 164, 205, 220, 242, 284, 355, 410, 451, 484, 605, 710, 781, 820, 902, 1210, 1331, 1420, 1562, 1804, 2255, 2420, 2662, 2911, 3124, 3905, 4510, 4961, 5324, 5822, 6655, 7810, 8591, 9020, 9922, 11644, 13310, 14555, 15620, 17182, 19844, 24805, 26620, 29110, 32021, 34364, 42955, 49610, 54571, 58220, 64042, 85910, 94501, 99220, 109142, 128084, 160105, 171820, 189002, 218284, 272855, 320210, 352231, 378004, 472505, 545710, 640420, 704462, 945010, 1091420, 1408924, 1761155, 1890020, 3522310, 3874541, 7044620, 7749082, 15498164, 19372705, 38745410, 77490820]

約数ペア:

[(1, 77490820), (2, 38745410), (4, 19372705), (5, 15498164), (10, 7749082), (11, 7044620), (20, 3874541), (22, 3522310), (41, 1890020), (44, 1761155), (55, 1408924), (71, 1091420), (82, 945010), (110, 704462), (121, 640420), (142, 545710), (164, 472505), (205, 378004), (220, 352231), (242, 320210), (284, 272855), (355, 218284), (410, 189002), (451, 171820), (484, 160105), (605, 128084), (710, 109142), (781, 99220), (820, 94501), (902, 85910), (1210, 64042), (1331, 58220), (1420, 54571), (1562, 49610), (1804, 42955), (2255, 34364), (2420, 32021), (2662, 29110), (2911, 26620), (3124, 24805), (3905, 19844), (4510, 17182), (4961, 15620), (5324, 14555), (5822, 13310), (6655, 11644), (7810, 9922), (8591, 9020)]