18517660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4561}}^1$

素因数の和:4606

約数の個数: 48

約数和(自身を含む): 45984960

約数和(自身を除く): 27467300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 4561, 9122, 18244, 22805, 31927, 45610, 63854, 91220, 127708, 132269, 159635, 264538, 319270, 529076, 638540, 661345, 925883, 1322690, 1851766, 2645380, 3703532, 4629415, 9258830, 18517660]

約数ペア:

[(1, 18517660), (2, 9258830), (4, 4629415), (5, 3703532), (7, 2645380), (10, 1851766), (14, 1322690), (20, 925883), (28, 661345), (29, 638540), (35, 529076), (58, 319270), (70, 264538), (116, 159635), (140, 132269), (145, 127708), (203, 91220), (290, 63854), (406, 45610), (580, 31927), (812, 22805), (1015, 18244), (2030, 9122), (4060, 4561)]