28181664

素因数分解:

$2^5\times 3^2\times 7^2\times {\mathrm{1997}}^1$

素因数の和:2027

約数の個数: 108

約数和(自身を含む): 93272634

約数和(自身を除く): 65090970

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 49, 56, 63, 72, 84, 96, 98, 112, 126, 144, 147, 168, 196, 224, 252, 288, 294, 336, 392, 441, 504, 588, 672, 784, 882, 1008, 1176, 1568, 1764, 1997, 2016, 2352, 3528, 3994, 4704, 5991, 7056, 7988, 11982, 13979, 14112, 15976, 17973, 23964, 27958, 31952, 35946, 41937, 47928, 55916, 63904, 71892, 83874, 95856, 97853, 111832, 125811, 143784, 167748, 191712, 195706, 223664, 251622, 287568, 293559, 335496, 391412, 447328, 503244, 575136, 587118, 670992, 782824, 880677, 1006488, 1174236, 1341984, 1565648, 1761354, 2012976, 2348472, 3131296, 3522708, 4025952, 4696944, 7045416, 9393888, 14090832, 28181664]

約数ペア:

[(1, 28181664), (2, 14090832), (3, 9393888), (4, 7045416), (6, 4696944), (7, 4025952), (8, 3522708), (9, 3131296), (12, 2348472), (14, 2012976), (16, 1761354), (18, 1565648), (21, 1341984), (24, 1174236), (28, 1006488), (32, 880677), (36, 782824), (42, 670992), (48, 587118), (49, 575136), (56, 503244), (63, 447328), (72, 391412), (84, 335496), (96, 293559), (98, 287568), (112, 251622), (126, 223664), (144, 195706), (147, 191712), (168, 167748), (196, 143784), (224, 125811), (252, 111832), (288, 97853), (294, 95856), (336, 83874), (392, 71892), (441, 63904), (504, 55916), (588, 47928), (672, 41937), (784, 35946), (882, 31952), (1008, 27958), (1176, 23964), (1568, 17973), (1764, 15976), (1997, 14112), (2016, 13979), (2352, 11982), (3528, 7988), (3994, 7056), (4704, 5991)]