245234781

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 396264960

約数和(自身を除く): 151030179

約数列:

[1, 3, 9, 11, 33, 71, 99, 139, 213, 251, 417, 639, 753, 781, 1251, 1529, 2259, 2343, 2761, 4587, 7029, 8283, 9869, 13761, 17821, 24849, 29607, 34889, 53463, 88821, 104667, 108559, 160389, 196031, 314001, 325677, 383779, 588093, 977031, 1151337, 1764279, 2477119, 3454011, 7431357, 22294071, 27248309, 81744927, 245234781]

約数ペア:

[(1, 245234781), (3, 81744927), (9, 27248309), (11, 22294071), (33, 7431357), (71, 3454011), (99, 2477119), (139, 1764279), (213, 1151337), (251, 977031), (417, 588093), (639, 383779), (753, 325677), (781, 314001), (1251, 196031), (1529, 160389), (2259, 108559), (2343, 104667), (2761, 88821), (4587, 53463), (7029, 34889), (8283, 29607), (9869, 24849), (13761, 17821)]