20948950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{929}}^1$

素因数の和:993

約数の個数: 48

約数和(自身を含む): 43590960

約数和(自身を除く): 22642010

約数列:

[1, 2, 5, 10, 11, 22, 25, 41, 50, 55, 82, 110, 205, 275, 410, 451, 550, 902, 929, 1025, 1858, 2050, 2255, 4510, 4645, 9290, 10219, 11275, 20438, 22550, 23225, 38089, 46450, 51095, 76178, 102190, 190445, 255475, 380890, 418979, 510950, 837958, 952225, 1904450, 2094895, 4189790, 10474475, 20948950]

約数ペア:

[(1, 20948950), (2, 10474475), (5, 4189790), (10, 2094895), (11, 1904450), (22, 952225), (25, 837958), (41, 510950), (50, 418979), (55, 380890), (82, 255475), (110, 190445), (205, 102190), (275, 76178), (410, 51095), (451, 46450), (550, 38089), (902, 23225), (929, 22550), (1025, 20438), (1858, 11275), (2050, 10219), (2255, 9290), (4510, 4645)]