206880520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67169}}^1$

素因数の和:67198

約数の個数: 64

約数和(自身を含む): 580348800

約数和(自身を除く): 373468280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 67169, 134338, 268676, 335845, 470183, 537352, 671690, 738859, 940366, 1343380, 1477718, 1880732, 2350915, 2686760, 2955436, 3694295, 3761464, 4701830, 5172013, 5910872, 7388590, 9403660, 10344026, 14777180, 18807320, 20688052, 25860065, 29554360, 41376104, 51720130, 103440260, 206880520]

約数ペア:

[(1, 206880520), (2, 103440260), (4, 51720130), (5, 41376104), (7, 29554360), (8, 25860065), (10, 20688052), (11, 18807320), (14, 14777180), (20, 10344026), (22, 9403660), (28, 7388590), (35, 5910872), (40, 5172013), (44, 4701830), (55, 3761464), (56, 3694295), (70, 2955436), (77, 2686760), (88, 2350915), (110, 1880732), (140, 1477718), (154, 1343380), (220, 940366), (280, 738859), (308, 671690), (385, 537352), (440, 470183), (616, 335845), (770, 268676), (1540, 134338), (3080, 67169)]