221658095

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 280941696

約数和(自身を除く): 59283601

約数列:

[1, 5, 41, 71, 97, 157, 205, 355, 485, 785, 2911, 3977, 6437, 6887, 11147, 14555, 15229, 19885, 32185, 34435, 55735, 76145, 282367, 457027, 624389, 1081259, 1411835, 2285135, 3121945, 5406295, 44331619, 221658095]

約数ペア:

[(1, 221658095), (5, 44331619), (41, 5406295), (71, 3121945), (97, 2285135), (157, 1411835), (205, 1081259), (355, 624389), (485, 457027), (785, 282367), (2911, 76145), (3977, 55735), (6437, 34435), (6887, 32185), (11147, 19885), (14555, 15229)]