257497656

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{337}}^1$

素因数の和:469

約数の個数: 128

約数和(自身を含む): 726835200

約数和(自身を除く): 469337544

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 31, 39, 52, 62, 78, 79, 93, 104, 124, 156, 158, 186, 237, 248, 312, 316, 337, 372, 403, 474, 632, 674, 744, 806, 948, 1011, 1027, 1209, 1348, 1612, 1896, 2022, 2054, 2418, 2449, 2696, 3081, 3224, 4044, 4108, 4381, 4836, 4898, 6162, 7347, 8088, 8216, 8762, 9672, 9796, 10447, 12324, 13143, 14694, 17524, 19592, 20894, 24648, 26286, 26623, 29388, 31341, 31837, 35048, 41788, 52572, 53246, 58776, 62682, 63674, 79869, 83576, 95511, 105144, 106492, 125364, 127348, 135811, 159738, 191022, 212984, 250728, 254696, 271622, 319476, 346099, 382044, 407433, 543244, 638952, 692198, 764088, 814866, 825313, 1038297, 1086488, 1384396, 1629732, 1650626, 2076594, 2475939, 2768792, 3259464, 3301252, 4153188, 4951878, 6602504, 8306376, 9903756, 10729069, 19807512, 21458138, 32187207, 42916276, 64374414, 85832552, 128748828, 257497656]

約数ペア:

[(1, 257497656), (2, 128748828), (3, 85832552), (4, 64374414), (6, 42916276), (8, 32187207), (12, 21458138), (13, 19807512), (24, 10729069), (26, 9903756), (31, 8306376), (39, 6602504), (52, 4951878), (62, 4153188), (78, 3301252), (79, 3259464), (93, 2768792), (104, 2475939), (124, 2076594), (156, 1650626), (158, 1629732), (186, 1384396), (237, 1086488), (248, 1038297), (312, 825313), (316, 814866), (337, 764088), (372, 692198), (403, 638952), (474, 543244), (632, 407433), (674, 382044), (744, 346099), (806, 319476), (948, 271622), (1011, 254696), (1027, 250728), (1209, 212984), (1348, 191022), (1612, 159738), (1896, 135811), (2022, 127348), (2054, 125364), (2418, 106492), (2449, 105144), (2696, 95511), (3081, 83576), (3224, 79869), (4044, 63674), (4108, 62682), (4381, 58776), (4836, 53246), (4898, 52572), (6162, 41788), (7347, 35048), (8088, 31837), (8216, 31341), (8762, 29388), (9672, 26623), (9796, 26286), (10447, 24648), (12324, 20894), (13143, 19592), (14694, 17524)]