257983884

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{4051}}^1$

素因数の和:4151

約数の個数: 72

約数和(自身を含む): 685841520

約数和(自身を除く): 427857636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 61, 87, 116, 122, 174, 183, 244, 261, 348, 366, 522, 549, 732, 1044, 1098, 1769, 2196, 3538, 4051, 5307, 7076, 8102, 10614, 12153, 15921, 16204, 21228, 24306, 31842, 36459, 48612, 63684, 72918, 117479, 145836, 234958, 247111, 352437, 469916, 494222, 704874, 741333, 988444, 1057311, 1409748, 1482666, 2114622, 2223999, 2965332, 4229244, 4447998, 7166219, 8895996, 14332438, 21498657, 28664876, 42997314, 64495971, 85994628, 128991942, 257983884]

約数ペア:

[(1, 257983884), (2, 128991942), (3, 85994628), (4, 64495971), (6, 42997314), (9, 28664876), (12, 21498657), (18, 14332438), (29, 8895996), (36, 7166219), (58, 4447998), (61, 4229244), (87, 2965332), (116, 2223999), (122, 2114622), (174, 1482666), (183, 1409748), (244, 1057311), (261, 988444), (348, 741333), (366, 704874), (522, 494222), (549, 469916), (732, 352437), (1044, 247111), (1098, 234958), (1769, 145836), (2196, 117479), (3538, 72918), (4051, 63684), (5307, 48612), (7076, 36459), (8102, 31842), (10614, 24306), (12153, 21228), (15921, 16204)]