28857808

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:296

約数の個数: 80

約数和(自身を含む): 68567040

約数和(自身を除く): 39709232

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 71, 76, 112, 133, 142, 152, 191, 266, 284, 304, 382, 497, 532, 568, 764, 994, 1064, 1136, 1337, 1349, 1528, 1988, 2128, 2674, 2698, 3056, 3629, 3976, 5348, 5396, 7258, 7952, 9443, 10696, 10792, 13561, 14516, 18886, 21392, 21584, 25403, 27122, 29032, 37772, 50806, 54244, 58064, 75544, 94927, 101612, 108488, 151088, 189854, 203224, 216976, 257659, 379708, 406448, 515318, 759416, 1030636, 1518832, 1803613, 2061272, 3607226, 4122544, 7214452, 14428904, 28857808]

約数ペア:

[(1, 28857808), (2, 14428904), (4, 7214452), (7, 4122544), (8, 3607226), (14, 2061272), (16, 1803613), (19, 1518832), (28, 1030636), (38, 759416), (56, 515318), (71, 406448), (76, 379708), (112, 257659), (133, 216976), (142, 203224), (152, 189854), (191, 151088), (266, 108488), (284, 101612), (304, 94927), (382, 75544), (497, 58064), (532, 54244), (568, 50806), (764, 37772), (994, 29032), (1064, 27122), (1136, 25403), (1337, 21584), (1349, 21392), (1528, 18886), (1988, 14516), (2128, 13561), (2674, 10792), (2698, 10696), (3056, 9443), (3629, 7952), (3976, 7258), (5348, 5396)]