681717712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:476

約数の個数: 80

約数和(自身を含む): 1451907072

約数和(自身を除く): 770189360

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 127, 131, 197, 208, 254, 262, 394, 508, 524, 788, 1016, 1048, 1576, 1651, 1703, 2032, 2096, 2561, 3152, 3302, 3406, 5122, 6604, 6812, 10244, 13208, 13624, 16637, 20488, 25019, 25807, 26416, 27248, 33274, 40976, 50038, 51614, 66548, 100076, 103228, 133096, 200152, 206456, 216281, 266192, 325247, 335491, 400304, 412912, 432562, 650494, 670982, 865124, 1300988, 1341964, 1730248, 2601976, 2683928, 3277489, 3460496, 5203952, 5367856, 6554978, 13109956, 26219912, 42607357, 52439824, 85214714, 170429428, 340858856, 681717712]

約数ペア:

[(1, 681717712), (2, 340858856), (4, 170429428), (8, 85214714), (13, 52439824), (16, 42607357), (26, 26219912), (52, 13109956), (104, 6554978), (127, 5367856), (131, 5203952), (197, 3460496), (208, 3277489), (254, 2683928), (262, 2601976), (394, 1730248), (508, 1341964), (524, 1300988), (788, 865124), (1016, 670982), (1048, 650494), (1576, 432562), (1651, 412912), (1703, 400304), (2032, 335491), (2096, 325247), (2561, 266192), (3152, 216281), (3302, 206456), (3406, 200152), (5122, 133096), (6604, 103228), (6812, 100076), (10244, 66548), (13208, 51614), (13624, 50038), (16637, 40976), (20488, 33274), (25019, 27248), (25807, 26416)]