20365840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23143}}^1$

素因数の和:23167

約数の個数: 40

約数和(自身を含む): 51657408

約数和(自身を除く): 31291568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23143, 46286, 92572, 115715, 185144, 231430, 254573, 370288, 462860, 509146, 925720, 1018292, 1272865, 1851440, 2036584, 2545730, 4073168, 5091460, 10182920, 20365840]

約数ペア:

[(1, 20365840), (2, 10182920), (4, 5091460), (5, 4073168), (8, 2545730), (10, 2036584), (11, 1851440), (16, 1272865), (20, 1018292), (22, 925720), (40, 509146), (44, 462860), (55, 370288), (80, 254573), (88, 231430), (110, 185144), (176, 115715), (220, 92572), (440, 46286), (880, 23143)]