209791036

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{421}}^1$

素因数の和:519

約数の個数: 72

約数和(自身を含む): 465503136

約数和(自身を除く): 255712100

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 37, 52, 74, 91, 148, 182, 259, 364, 421, 481, 518, 842, 962, 1036, 1369, 1684, 1924, 2738, 2947, 3367, 5473, 5476, 5894, 6734, 9583, 10946, 11788, 13468, 15577, 17797, 19166, 21892, 31154, 35594, 38311, 38332, 62308, 71188, 76622, 109039, 124579, 153244, 202501, 218078, 249158, 405002, 436156, 498316, 576349, 810004, 1152698, 1417507, 2305396, 2835014, 4034443, 5670028, 7492537, 8068886, 14985074, 16137772, 29970148, 52447759, 104895518, 209791036]

約数ペア:

[(1, 209791036), (2, 104895518), (4, 52447759), (7, 29970148), (13, 16137772), (14, 14985074), (26, 8068886), (28, 7492537), (37, 5670028), (52, 4034443), (74, 2835014), (91, 2305396), (148, 1417507), (182, 1152698), (259, 810004), (364, 576349), (421, 498316), (481, 436156), (518, 405002), (842, 249158), (962, 218078), (1036, 202501), (1369, 153244), (1684, 124579), (1924, 109039), (2738, 76622), (2947, 71188), (3367, 62308), (5473, 38332), (5476, 38311), (5894, 35594), (6734, 31154), (9583, 21892), (10946, 19166), (11788, 17797), (13468, 15577)]