51313905

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 101146320

約数和(自身を除く): 49832415

約数列:

[1, 3, 5, 9, 15, 17, 27, 29, 45, 51, 81, 85, 87, 135, 145, 153, 255, 257, 261, 405, 435, 459, 493, 765, 771, 783, 1285, 1305, 1377, 1479, 2295, 2313, 2349, 2465, 3855, 3915, 4369, 4437, 6885, 6939, 7395, 7453, 11565, 11745, 13107, 13311, 20817, 21845, 22185, 22359, 34695, 37265, 39321, 39933, 65535, 66555, 67077, 104085, 111795, 117963, 126701, 196605, 199665, 201231, 335385, 353889, 380103, 589815, 603693, 633505, 1006155, 1140309, 1769445, 1900515, 3018465, 3420927, 5701545, 10262781, 17104635, 51313905]

約数ペア:

[(1, 51313905), (3, 17104635), (5, 10262781), (9, 5701545), (15, 3420927), (17, 3018465), (27, 1900515), (29, 1769445), (45, 1140309), (51, 1006155), (81, 633505), (85, 603693), (87, 589815), (135, 380103), (145, 353889), (153, 335385), (255, 201231), (257, 199665), (261, 196605), (405, 126701), (435, 117963), (459, 111795), (493, 104085), (765, 67077), (771, 66555), (783, 65535), (1285, 39933), (1305, 39321), (1377, 37265), (1479, 34695), (2295, 22359), (2313, 22185), (2349, 21845), (2465, 20817), (3855, 13311), (3915, 13107), (4369, 11745), (4437, 11565), (6885, 7453), (6939, 7395)]