2649815680

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1\times {\mathrm{353}}^1$

素因数の和:726

約数の個数: 128

約数和(自身を含む): 6544936080

約数和(自身を除く): 3895120400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 296, 317, 320, 353, 370, 592, 634, 640, 706, 740, 1184, 1268, 1412, 1480, 1585, 1765, 2368, 2536, 2824, 2960, 3170, 3530, 4736, 5072, 5648, 5920, 6340, 7060, 10144, 11296, 11729, 11840, 12680, 13061, 14120, 20288, 22592, 23458, 23680, 25360, 26122, 28240, 40576, 45184, 46916, 50720, 52244, 56480, 58645, 65305, 93832, 101440, 104488, 111901, 112960, 117290, 130610, 187664, 202880, 208976, 223802, 225920, 234580, 261220, 375328, 417952, 447604, 469160, 522440, 559505, 750656, 835904, 895208, 938320, 1044880, 1119010, 1501312, 1671808, 1790416, 1876640, 2089760, 2238020, 3580832, 3753280, 4140337, 4179520, 4476040, 7161664, 7506560, 8280674, 8359040, 8952080, 14323328, 16561348, 17904160, 20701685, 33122696, 35808320, 41403370, 66245392, 71616640, 82806740, 132490784, 165613480, 264981568, 331226960, 529963136, 662453920, 1324907840, 2649815680]

約数ペア:

[(1, 2649815680), (2, 1324907840), (4, 662453920), (5, 529963136), (8, 331226960), (10, 264981568), (16, 165613480), (20, 132490784), (32, 82806740), (37, 71616640), (40, 66245392), (64, 41403370), (74, 35808320), (80, 33122696), (128, 20701685), (148, 17904160), (160, 16561348), (185, 14323328), (296, 8952080), (317, 8359040), (320, 8280674), (353, 7506560), (370, 7161664), (592, 4476040), (634, 4179520), (640, 4140337), (706, 3753280), (740, 3580832), (1184, 2238020), (1268, 2089760), (1412, 1876640), (1480, 1790416), (1585, 1671808), (1765, 1501312), (2368, 1119010), (2536, 1044880), (2824, 938320), (2960, 895208), (3170, 835904), (3530, 750656), (4736, 559505), (5072, 522440), (5648, 469160), (5920, 447604), (6340, 417952), (7060, 375328), (10144, 261220), (11296, 234580), (11729, 225920), (11840, 223802), (12680, 208976), (13061, 202880), (14120, 187664), (20288, 130610), (22592, 117290), (23458, 112960), (23680, 111901), (25360, 104488), (26122, 101440), (28240, 93832), (40576, 65305), (45184, 58645), (46916, 56480), (50720, 52244)]