18756608

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{1409}}^1$

素因数の和:1442

約数の個数: 44

約数和(自身を含む): 40407780

約数和(自身を除く): 21651172

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1409, 1664, 2818, 3328, 5636, 6656, 11272, 13312, 18317, 22544, 36634, 45088, 73268, 90176, 146536, 180352, 293072, 360704, 586144, 721408, 1172288, 1442816, 2344576, 4689152, 9378304, 18756608]

約数ペア:

[(1, 18756608), (2, 9378304), (4, 4689152), (8, 2344576), (13, 1442816), (16, 1172288), (26, 721408), (32, 586144), (52, 360704), (64, 293072), (104, 180352), (128, 146536), (208, 90176), (256, 73268), (416, 45088), (512, 36634), (832, 22544), (1024, 18317), (1409, 13312), (1664, 11272), (2818, 6656), (3328, 5636)]