198972385

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 253435392

約数和(自身を除く): 54463007

約数列:

[1, 5, 41, 47, 107, 193, 205, 235, 535, 965, 1927, 4387, 5029, 7913, 9071, 9635, 20651, 21935, 25145, 39565, 45355, 103255, 206189, 371911, 846691, 970597, 1030945, 1859555, 4233455, 4852985, 39794477, 198972385]

約数ペア:

[(1, 198972385), (5, 39794477), (41, 4852985), (47, 4233455), (107, 1859555), (193, 1030945), (205, 970597), (235, 846691), (535, 371911), (965, 206189), (1927, 103255), (4387, 45355), (5029, 39565), (7913, 25145), (9071, 21935), (9635, 20651)]