2019940040

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{20143}}^1$

素因数の和:20286

約数の個数: 64

約数和(自身を含む): 4786214400

約数和(自身を除く): 2766274360

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 109, 115, 184, 218, 230, 436, 460, 545, 872, 920, 1090, 2180, 2507, 4360, 5014, 10028, 12535, 20056, 20143, 25070, 40286, 50140, 80572, 100280, 100715, 161144, 201430, 402860, 463289, 805720, 926578, 1853156, 2195587, 2316445, 3706312, 4391174, 4632890, 8782348, 9265780, 10977935, 17564696, 18531560, 21955870, 43911740, 50498501, 87823480, 100997002, 201994004, 252492505, 403988008, 504985010, 1009970020, 2019940040]

約数ペア:

[(1, 2019940040), (2, 1009970020), (4, 504985010), (5, 403988008), (8, 252492505), (10, 201994004), (20, 100997002), (23, 87823480), (40, 50498501), (46, 43911740), (92, 21955870), (109, 18531560), (115, 17564696), (184, 10977935), (218, 9265780), (230, 8782348), (436, 4632890), (460, 4391174), (545, 3706312), (872, 2316445), (920, 2195587), (1090, 1853156), (2180, 926578), (2507, 805720), (4360, 463289), (5014, 402860), (10028, 201430), (12535, 161144), (20056, 100715), (20143, 100280), (25070, 80572), (40286, 50140)]