20163744640

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{33199}}^1$

素因数の和:33304

約数の個数: 128

約数和(自身を含む): 52624656000

約数和(自身を除く): 32460911360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 73, 80, 104, 128, 130, 146, 160, 208, 260, 292, 320, 365, 416, 520, 584, 640, 730, 832, 949, 1040, 1168, 1460, 1664, 1898, 2080, 2336, 2920, 3796, 4160, 4672, 4745, 5840, 7592, 8320, 9344, 9490, 11680, 15184, 18980, 23360, 30368, 33199, 37960, 46720, 60736, 66398, 75920, 121472, 132796, 151840, 165995, 265592, 303680, 331990, 431587, 531184, 607360, 663980, 863174, 1062368, 1327960, 1726348, 2124736, 2157935, 2423527, 2655920, 3452696, 4249472, 4315870, 4847054, 5311840, 6905392, 8631740, 9694108, 10623680, 12117635, 13810784, 17263480, 19388216, 21247360, 24235270, 27621568, 31505851, 34526960, 38776432, 48470540, 55243136, 63011702, 69053920, 77552864, 96941080, 126023404, 138107840, 155105728, 157529255, 193882160, 252046808, 276215680, 310211456, 315058510, 387764320, 504093616, 630117020, 775528640, 1008187232, 1260234040, 1551057280, 2016374464, 2520468080, 4032748928, 5040936160, 10081872320, 20163744640]

約数ペア:

[(1, 20163744640), (2, 10081872320), (4, 5040936160), (5, 4032748928), (8, 2520468080), (10, 2016374464), (13, 1551057280), (16, 1260234040), (20, 1008187232), (26, 775528640), (32, 630117020), (40, 504093616), (52, 387764320), (64, 315058510), (65, 310211456), (73, 276215680), (80, 252046808), (104, 193882160), (128, 157529255), (130, 155105728), (146, 138107840), (160, 126023404), (208, 96941080), (260, 77552864), (292, 69053920), (320, 63011702), (365, 55243136), (416, 48470540), (520, 38776432), (584, 34526960), (640, 31505851), (730, 27621568), (832, 24235270), (949, 21247360), (1040, 19388216), (1168, 17263480), (1460, 13810784), (1664, 12117635), (1898, 10623680), (2080, 9694108), (2336, 8631740), (2920, 6905392), (3796, 5311840), (4160, 4847054), (4672, 4315870), (4745, 4249472), (5840, 3452696), (7592, 2655920), (8320, 2423527), (9344, 2157935), (9490, 2124736), (11680, 1726348), (15184, 1327960), (18980, 1062368), (23360, 863174), (30368, 663980), (33199, 607360), (37960, 531184), (46720, 431587), (60736, 331990), (66398, 303680), (75920, 265592), (121472, 165995), (132796, 151840)]