1999880080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{48353}}^1$

素因数の和:48424

約数の個数: 80

約数和(自身を含む): 5180454144

約数和(自身を除く): 3180574064

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 80, 88, 94, 110, 176, 188, 220, 235, 376, 440, 470, 517, 752, 880, 940, 1034, 1880, 2068, 2585, 3760, 4136, 5170, 8272, 10340, 20680, 41360, 48353, 96706, 193412, 241765, 386824, 483530, 531883, 773648, 967060, 1063766, 1934120, 2127532, 2272591, 2659415, 3868240, 4255064, 4545182, 5318830, 8510128, 9090364, 10637660, 11362955, 18180728, 21275320, 22725910, 24998501, 36361456, 42550640, 45451820, 49997002, 90903640, 99994004, 124992505, 181807280, 199988008, 249985010, 399976016, 499970020, 999940040, 1999880080]

約数ペア:

[(1, 1999880080), (2, 999940040), (4, 499970020), (5, 399976016), (8, 249985010), (10, 199988008), (11, 181807280), (16, 124992505), (20, 99994004), (22, 90903640), (40, 49997002), (44, 45451820), (47, 42550640), (55, 36361456), (80, 24998501), (88, 22725910), (94, 21275320), (110, 18180728), (176, 11362955), (188, 10637660), (220, 9090364), (235, 8510128), (376, 5318830), (440, 4545182), (470, 4255064), (517, 3868240), (752, 2659415), (880, 2272591), (940, 2127532), (1034, 1934120), (1880, 1063766), (2068, 967060), (2585, 773648), (3760, 531883), (4136, 483530), (5170, 386824), (8272, 241765), (10340, 193412), (20680, 96706), (41360, 48353)]