221752685

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{769}}^1$

素因数の和:906

約数の個数: 48

約数和(自身を含む): 341288640

約数和(自身を除く): 119535955

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 107, 245, 385, 535, 539, 749, 769, 1177, 2695, 3745, 3845, 5243, 5383, 5885, 8239, 8459, 26215, 26915, 37681, 41195, 42295, 57673, 59213, 82283, 188405, 288365, 296065, 411415, 414491, 575981, 905113, 2072455, 2879905, 4031867, 4525565, 6335791, 20159335, 31678955, 44350537, 221752685]

約数ペア:

[(1, 221752685), (5, 44350537), (7, 31678955), (11, 20159335), (35, 6335791), (49, 4525565), (55, 4031867), (77, 2879905), (107, 2072455), (245, 905113), (385, 575981), (535, 414491), (539, 411415), (749, 296065), (769, 288365), (1177, 188405), (2695, 82283), (3745, 59213), (3845, 57673), (5243, 42295), (5383, 41195), (5885, 37681), (8239, 26915), (8459, 26215)]