257647908

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:521

約数の個数: 96

約数和(自身を含む): 703166464

約数和(自身を除く): 445518556

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 97, 103, 194, 206, 291, 307, 309, 388, 412, 582, 614, 618, 679, 721, 921, 1164, 1228, 1236, 1358, 1442, 1842, 2037, 2149, 2163, 2716, 2884, 3684, 4074, 4298, 4326, 6447, 8148, 8596, 8652, 9991, 12894, 19982, 25788, 29779, 29973, 31621, 39964, 59558, 59946, 63242, 69937, 89337, 94863, 119116, 119892, 126484, 139874, 178674, 189726, 208453, 209811, 221347, 279748, 357348, 379452, 416906, 419622, 442694, 625359, 664041, 833812, 839244, 885388, 1250718, 1328082, 2501436, 2656164, 3067237, 6134474, 9201711, 12268948, 18403422, 21470659, 36806844, 42941318, 64411977, 85882636, 128823954, 257647908]

約数ペア:

[(1, 257647908), (2, 128823954), (3, 85882636), (4, 64411977), (6, 42941318), (7, 36806844), (12, 21470659), (14, 18403422), (21, 12268948), (28, 9201711), (42, 6134474), (84, 3067237), (97, 2656164), (103, 2501436), (194, 1328082), (206, 1250718), (291, 885388), (307, 839244), (309, 833812), (388, 664041), (412, 625359), (582, 442694), (614, 419622), (618, 416906), (679, 379452), (721, 357348), (921, 279748), (1164, 221347), (1228, 209811), (1236, 208453), (1358, 189726), (1442, 178674), (1842, 139874), (2037, 126484), (2149, 119892), (2163, 119116), (2716, 94863), (2884, 89337), (3684, 69937), (4074, 63242), (4298, 59946), (4326, 59558), (6447, 39964), (8148, 31621), (8596, 29973), (8652, 29779), (9991, 25788), (12894, 19982)]