87421895

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{229}}^1\times {\mathrm{631}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 115997280

約数和(自身を除く): 28575385

約数列:

[1, 5, 11, 55, 121, 229, 605, 631, 1145, 2519, 3155, 6941, 12595, 27709, 34705, 76351, 138545, 144499, 381755, 722495, 1589489, 7947445, 17484379, 87421895]

約数ペア:

[(1, 87421895), (5, 17484379), (11, 7947445), (55, 1589489), (121, 722495), (229, 381755), (605, 144499), (631, 138545), (1145, 76351), (2519, 34705), (3155, 27709), (6941, 12595)]