638406648

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{577}}^1$

素因数の和:738

約数の個数: 144

約数和(自身を含む): 1918775040

約数和(自身を除く): 1280368392

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 44, 66, 72, 88, 99, 121, 127, 132, 198, 242, 254, 264, 363, 381, 396, 484, 508, 577, 726, 762, 792, 968, 1016, 1089, 1143, 1154, 1397, 1452, 1524, 1731, 2178, 2286, 2308, 2794, 2904, 3048, 3462, 4191, 4356, 4572, 4616, 5193, 5588, 6347, 6924, 8382, 8712, 9144, 10386, 11176, 12573, 12694, 13848, 15367, 16764, 19041, 20772, 25146, 25388, 30734, 33528, 38082, 41544, 46101, 50292, 50776, 57123, 61468, 69817, 73279, 76164, 92202, 100584, 114246, 122936, 138303, 139634, 146558, 152328, 184404, 209451, 219837, 228492, 276606, 279268, 293116, 368808, 418902, 439674, 456984, 553212, 558536, 586232, 628353, 659511, 806069, 837804, 879348, 1106424, 1256706, 1319022, 1612138, 1675608, 1758696, 2418207, 2513412, 2638044, 3224276, 4836414, 5026824, 5276088, 6448552, 7254621, 8866759, 9672828, 14509242, 17733518, 19345656, 26600277, 29018484, 35467036, 53200554, 58036968, 70934072, 79800831, 106401108, 159601662, 212802216, 319203324, 638406648]

約数ペア:

[(1, 638406648), (2, 319203324), (3, 212802216), (4, 159601662), (6, 106401108), (8, 79800831), (9, 70934072), (11, 58036968), (12, 53200554), (18, 35467036), (22, 29018484), (24, 26600277), (33, 19345656), (36, 17733518), (44, 14509242), (66, 9672828), (72, 8866759), (88, 7254621), (99, 6448552), (121, 5276088), (127, 5026824), (132, 4836414), (198, 3224276), (242, 2638044), (254, 2513412), (264, 2418207), (363, 1758696), (381, 1675608), (396, 1612138), (484, 1319022), (508, 1256706), (577, 1106424), (726, 879348), (762, 837804), (792, 806069), (968, 659511), (1016, 628353), (1089, 586232), (1143, 558536), (1154, 553212), (1397, 456984), (1452, 439674), (1524, 418902), (1731, 368808), (2178, 293116), (2286, 279268), (2308, 276606), (2794, 228492), (2904, 219837), (3048, 209451), (3462, 184404), (4191, 152328), (4356, 146558), (4572, 139634), (4616, 138303), (5193, 122936), (5588, 114246), (6347, 100584), (6924, 92202), (8382, 76164), (8712, 73279), (9144, 69817), (10386, 61468), (11176, 57123), (12573, 50776), (12694, 50292), (13848, 46101), (15367, 41544), (16764, 38082), (19041, 33528), (20772, 30734), (25146, 25388)]