28219730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{547}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 64392192

約数和(自身を除く): 36172462

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 67, 70, 77, 110, 134, 154, 335, 385, 469, 547, 670, 737, 770, 938, 1094, 1474, 2345, 2735, 3685, 3829, 4690, 5159, 5470, 6017, 7370, 7658, 10318, 12034, 19145, 25795, 30085, 36649, 38290, 42119, 51590, 60170, 73298, 84238, 183245, 210595, 256543, 366490, 403139, 421190, 513086, 806278, 1282715, 2015695, 2565430, 2821973, 4031390, 5643946, 14109865, 28219730]

約数ペア:

[(1, 28219730), (2, 14109865), (5, 5643946), (7, 4031390), (10, 2821973), (11, 2565430), (14, 2015695), (22, 1282715), (35, 806278), (55, 513086), (67, 421190), (70, 403139), (77, 366490), (110, 256543), (134, 210595), (154, 183245), (335, 84238), (385, 73298), (469, 60170), (547, 51590), (670, 42119), (737, 38290), (770, 36649), (938, 30085), (1094, 25795), (1474, 19145), (2345, 12034), (2735, 10318), (3685, 7658), (3829, 7370), (4690, 6017), (5159, 5470)]