28393904

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1213}}^1$

素因数の和:1258

約数の個数: 80

約数和(自身を含む): 72257280

約数和(自身を除く): 43863376

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 38, 44, 56, 76, 77, 88, 112, 133, 152, 154, 176, 209, 266, 304, 308, 418, 532, 616, 836, 1064, 1213, 1232, 1463, 1672, 2128, 2426, 2926, 3344, 4852, 5852, 8491, 9704, 11704, 13343, 16982, 19408, 23047, 23408, 26686, 33964, 46094, 53372, 67928, 92188, 93401, 106744, 135856, 161329, 184376, 186802, 213488, 253517, 322658, 368752, 373604, 507034, 645316, 747208, 1014068, 1290632, 1494416, 1774619, 2028136, 2581264, 3549238, 4056272, 7098476, 14196952, 28393904]

約数ペア:

[(1, 28393904), (2, 14196952), (4, 7098476), (7, 4056272), (8, 3549238), (11, 2581264), (14, 2028136), (16, 1774619), (19, 1494416), (22, 1290632), (28, 1014068), (38, 747208), (44, 645316), (56, 507034), (76, 373604), (77, 368752), (88, 322658), (112, 253517), (133, 213488), (152, 186802), (154, 184376), (176, 161329), (209, 135856), (266, 106744), (304, 93401), (308, 92188), (418, 67928), (532, 53372), (616, 46094), (836, 33964), (1064, 26686), (1213, 23408), (1232, 23047), (1463, 19408), (1672, 16982), (2128, 13343), (2426, 11704), (2926, 9704), (3344, 8491), (4852, 5852)]