278311768

素因数分解:

$2^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 628486560

約数和(自身を除く): 350174792

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 61, 98, 103, 113, 122, 196, 206, 226, 244, 392, 412, 427, 452, 488, 721, 791, 824, 854, 904, 1442, 1582, 1708, 2884, 2989, 3164, 3416, 5047, 5537, 5768, 5978, 6283, 6328, 6893, 10094, 11074, 11639, 11956, 12566, 13786, 20188, 22148, 23278, 23912, 25132, 27572, 40376, 43981, 44296, 46556, 48251, 50264, 55144, 81473, 87962, 93112, 96502, 162946, 175924, 193004, 307867, 325892, 337757, 351848, 386008, 570311, 615734, 651784, 675514, 709979, 1140622, 1231468, 1351028, 1419958, 2281244, 2462936, 2702056, 2839916, 4562488, 4969853, 5679832, 9939706, 19879412, 34788971, 39758824, 69577942, 139155884, 278311768]

約数ペア:

[(1, 278311768), (2, 139155884), (4, 69577942), (7, 39758824), (8, 34788971), (14, 19879412), (28, 9939706), (49, 5679832), (56, 4969853), (61, 4562488), (98, 2839916), (103, 2702056), (113, 2462936), (122, 2281244), (196, 1419958), (206, 1351028), (226, 1231468), (244, 1140622), (392, 709979), (412, 675514), (427, 651784), (452, 615734), (488, 570311), (721, 386008), (791, 351848), (824, 337757), (854, 325892), (904, 307867), (1442, 193004), (1582, 175924), (1708, 162946), (2884, 96502), (2989, 93112), (3164, 87962), (3416, 81473), (5047, 55144), (5537, 50264), (5768, 48251), (5978, 46556), (6283, 44296), (6328, 43981), (6893, 40376), (10094, 27572), (11074, 25132), (11639, 23912), (11956, 23278), (12566, 22148), (13786, 20188)]