49502720

素因数分解:

$2^9\times 5^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:401

約数の個数: 80

約数和(自身を含む): 121016808

約数和(自身を除く): 71514088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 317, 320, 488, 512, 610, 634, 640, 976, 1220, 1268, 1280, 1585, 1952, 2440, 2536, 2560, 3170, 3904, 4880, 5072, 6340, 7808, 9760, 10144, 12680, 15616, 19337, 19520, 20288, 25360, 31232, 38674, 39040, 40576, 50720, 77348, 78080, 81152, 96685, 101440, 154696, 156160, 162304, 193370, 202880, 309392, 386740, 405760, 618784, 773480, 811520, 1237568, 1546960, 2475136, 3093920, 4950272, 6187840, 9900544, 12375680, 24751360, 49502720]

約数ペア:

[(1, 49502720), (2, 24751360), (4, 12375680), (5, 9900544), (8, 6187840), (10, 4950272), (16, 3093920), (20, 2475136), (32, 1546960), (40, 1237568), (61, 811520), (64, 773480), (80, 618784), (122, 405760), (128, 386740), (160, 309392), (244, 202880), (256, 193370), (305, 162304), (317, 156160), (320, 154696), (488, 101440), (512, 96685), (610, 81152), (634, 78080), (640, 77348), (976, 50720), (1220, 40576), (1268, 39040), (1280, 38674), (1585, 31232), (1952, 25360), (2440, 20288), (2536, 19520), (2560, 19337), (3170, 15616), (3904, 12680), (4880, 10144), (5072, 9760), (6340, 7808)]