221479745

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 281788416

約数和(自身を除く): 60308671

約数列:

[1, 5, 41, 47, 127, 181, 205, 235, 635, 905, 1927, 5207, 5969, 7421, 8507, 9635, 22987, 26035, 29845, 37105, 42535, 114935, 244729, 348787, 942467, 1080389, 1223645, 1743935, 4712335, 5401945, 44295949, 221479745]

約数ペア:

[(1, 221479745), (5, 44295949), (41, 5401945), (47, 4712335), (127, 1743935), (181, 1223645), (205, 1080389), (235, 942467), (635, 348787), (905, 244729), (1927, 114935), (5207, 42535), (5969, 37105), (7421, 29845), (8507, 26035), (9635, 22987)]