20392900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{18539}}^1$

素因数の和:18564

約数の個数: 36

約数和(自身を含む): 48278160

約数和(自身を除く): 27885260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 18539, 37078, 74156, 92695, 185390, 203929, 370780, 407858, 463475, 815716, 926950, 1019645, 1853900, 2039290, 4078580, 5098225, 10196450, 20392900]

約数ペア:

[(1, 20392900), (2, 10196450), (4, 5098225), (5, 4078580), (10, 2039290), (11, 1853900), (20, 1019645), (22, 926950), (25, 815716), (44, 463475), (50, 407858), (55, 370780), (100, 203929), (110, 185390), (220, 92695), (275, 74156), (550, 37078), (1100, 18539)]