7438220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 16426368

約数和(自身を除く): 8988148

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 193, 205, 235, 386, 410, 470, 772, 820, 940, 965, 1927, 1930, 3854, 3860, 7708, 7913, 9071, 9635, 15826, 18142, 19270, 31652, 36284, 38540, 39565, 45355, 79130, 90710, 158260, 181420, 371911, 743822, 1487644, 1859555, 3719110, 7438220]

約数ペア:

[(1, 7438220), (2, 3719110), (4, 1859555), (5, 1487644), (10, 743822), (20, 371911), (41, 181420), (47, 158260), (82, 90710), (94, 79130), (164, 45355), (188, 39565), (193, 38540), (205, 36284), (235, 31652), (386, 19270), (410, 18142), (470, 15826), (772, 9635), (820, 9071), (940, 7913), (965, 7708), (1927, 3860), (1930, 3854)]