20196440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{233}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 50038560

約数和(自身を除く): 29842120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 197, 220, 233, 394, 440, 466, 788, 932, 985, 1165, 1576, 1864, 1970, 2167, 2330, 2563, 3940, 4334, 4660, 5126, 7880, 8668, 9320, 10252, 10835, 12815, 17336, 20504, 21670, 25630, 43340, 45901, 51260, 86680, 91802, 102520, 183604, 229505, 367208, 459010, 504911, 918020, 1009822, 1836040, 2019644, 2524555, 4039288, 5049110, 10098220, 20196440]

約数ペア:

[(1, 20196440), (2, 10098220), (4, 5049110), (5, 4039288), (8, 2524555), (10, 2019644), (11, 1836040), (20, 1009822), (22, 918020), (40, 504911), (44, 459010), (55, 367208), (88, 229505), (110, 183604), (197, 102520), (220, 91802), (233, 86680), (394, 51260), (440, 45901), (466, 43340), (788, 25630), (932, 21670), (985, 20504), (1165, 17336), (1576, 12815), (1864, 10835), (1970, 10252), (2167, 9320), (2330, 8668), (2563, 7880), (3940, 5126), (4334, 4660)]