128575556

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 244984320

約数和(自身を除く): 116408764

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 139, 223, 244, 278, 446, 556, 892, 1037, 2074, 2363, 3791, 4148, 4726, 7582, 8479, 9452, 13603, 15164, 16958, 27206, 30997, 33916, 54412, 61994, 123988, 144143, 231251, 288286, 462502, 526949, 576572, 925004, 1053898, 1890817, 2107796, 3781634, 7563268, 32143889, 64287778, 128575556]

約数ペア:

[(1, 128575556), (2, 64287778), (4, 32143889), (17, 7563268), (34, 3781634), (61, 2107796), (68, 1890817), (122, 1053898), (139, 925004), (223, 576572), (244, 526949), (278, 462502), (446, 288286), (556, 231251), (892, 144143), (1037, 123988), (2074, 61994), (2363, 54412), (3791, 33916), (4148, 30997), (4726, 27206), (7582, 16958), (8479, 15164), (9452, 13603)]