9140540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 20067264

約数和(自身を除く): 10926724

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 142, 157, 164, 205, 284, 314, 355, 410, 628, 710, 785, 820, 1420, 1570, 2911, 3140, 5822, 6437, 11147, 11644, 12874, 14555, 22294, 25748, 29110, 32185, 44588, 55735, 58220, 64370, 111470, 128740, 222940, 457027, 914054, 1828108, 2285135, 4570270, 9140540]

約数ペア:

[(1, 9140540), (2, 4570270), (4, 2285135), (5, 1828108), (10, 914054), (20, 457027), (41, 222940), (71, 128740), (82, 111470), (142, 64370), (157, 58220), (164, 55735), (205, 44588), (284, 32185), (314, 29110), (355, 25748), (410, 22294), (628, 14555), (710, 12874), (785, 11644), (820, 11147), (1420, 6437), (1570, 5822), (2911, 3140)]