2561878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:180

約数の個数: 32

約数和(自身を含む): 4499712

約数和(自身を除く): 1937834

約数列:

[1, 2, 11, 22, 23, 46, 61, 83, 122, 166, 253, 506, 671, 913, 1342, 1403, 1826, 1909, 2806, 3818, 5063, 10126, 15433, 20999, 30866, 41998, 55693, 111386, 116449, 232898, 1280939, 2561878]

約数ペア:

[(1, 2561878), (2, 1280939), (11, 232898), (22, 116449), (23, 111386), (46, 55693), (61, 41998), (83, 30866), (122, 20999), (166, 15433), (253, 10126), (506, 5063), (671, 3818), (913, 2806), (1342, 1909), (1403, 1826)]