20090444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 19826356

約数列:

[1, 2, 4, 11, 22, 44, 59, 71, 109, 118, 142, 218, 236, 284, 436, 649, 781, 1199, 1298, 1562, 2398, 2596, 3124, 4189, 4796, 6431, 7739, 8378, 12862, 15478, 16756, 25724, 30956, 46079, 70741, 85129, 92158, 141482, 170258, 184316, 282964, 340516, 456601, 913202, 1826404, 5022611, 10045222, 20090444]

約数ペア:

[(1, 20090444), (2, 10045222), (4, 5022611), (11, 1826404), (22, 913202), (44, 456601), (59, 340516), (71, 282964), (109, 184316), (118, 170258), (142, 141482), (218, 92158), (236, 85129), (284, 70741), (436, 46079), (649, 30956), (781, 25724), (1199, 16756), (1298, 15478), (1562, 12862), (2398, 8378), (2596, 7739), (3124, 6431), (4189, 4796)]