20171101760

素因数分解:

$2^6\times 5^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1\times {\mathrm{1033}}^1$

素因数の和:1628

約数の個数: 112

約数和(自身を含む): 48535132800

約数和(自身を除く): 28364031040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 139, 160, 278, 320, 439, 556, 695, 878, 1033, 1112, 1390, 1756, 2066, 2195, 2224, 2780, 3512, 4132, 4390, 4448, 5165, 5560, 7024, 8264, 8780, 8896, 10330, 11120, 14048, 16528, 17560, 20660, 22240, 28096, 33056, 35120, 41320, 44480, 61021, 66112, 70240, 82640, 122042, 140480, 143587, 165280, 244084, 287174, 305105, 330560, 453487, 488168, 574348, 610210, 717935, 906974, 976336, 1148696, 1220420, 1435870, 1813948, 1952672, 2267435, 2297392, 2440840, 2871740, 3627896, 3905344, 4534870, 4594784, 4881680, 5743480, 7255792, 9069740, 9189568, 9763360, 11486960, 14511584, 18139480, 19526720, 22973920, 29023168, 36278960, 45947840, 63034693, 72557920, 126069386, 145115840, 252138772, 315173465, 504277544, 630346930, 1008555088, 1260693860, 2017110176, 2521387720, 4034220352, 5042775440, 10085550880, 20171101760]

約数ペア:

[(1, 20171101760), (2, 10085550880), (4, 5042775440), (5, 4034220352), (8, 2521387720), (10, 2017110176), (16, 1260693860), (20, 1008555088), (32, 630346930), (40, 504277544), (64, 315173465), (80, 252138772), (139, 145115840), (160, 126069386), (278, 72557920), (320, 63034693), (439, 45947840), (556, 36278960), (695, 29023168), (878, 22973920), (1033, 19526720), (1112, 18139480), (1390, 14511584), (1756, 11486960), (2066, 9763360), (2195, 9189568), (2224, 9069740), (2780, 7255792), (3512, 5743480), (4132, 4881680), (4390, 4594784), (4448, 4534870), (5165, 3905344), (5560, 3627896), (7024, 2871740), (8264, 2440840), (8780, 2297392), (8896, 2267435), (10330, 1952672), (11120, 1813948), (14048, 1435870), (16528, 1220420), (17560, 1148696), (20660, 976336), (22240, 906974), (28096, 717935), (33056, 610210), (35120, 574348), (41320, 488168), (44480, 453487), (61021, 330560), (66112, 305105), (70240, 287174), (82640, 244084), (122042, 165280), (140480, 143587)]