28287864

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:242

約数の個数: 144

約数和(自身を含む): 89631360

約数和(自身を除く): 61343496

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 17, 18, 22, 24, 33, 34, 36, 44, 51, 66, 68, 72, 88, 99, 102, 121, 132, 136, 153, 187, 191, 198, 204, 242, 264, 306, 363, 374, 382, 396, 408, 484, 561, 573, 612, 726, 748, 764, 792, 968, 1089, 1122, 1146, 1224, 1452, 1496, 1528, 1683, 1719, 2057, 2101, 2178, 2244, 2292, 2904, 3247, 3366, 3438, 4114, 4202, 4356, 4488, 4584, 6171, 6303, 6494, 6732, 6876, 8228, 8404, 8712, 9741, 12342, 12606, 12988, 13464, 13752, 16456, 16808, 18513, 18909, 19482, 23111, 24684, 25212, 25976, 29223, 35717, 37026, 37818, 38964, 46222, 49368, 50424, 58446, 69333, 71434, 74052, 75636, 77928, 92444, 107151, 116892, 138666, 142868, 148104, 151272, 184888, 207999, 214302, 233784, 277332, 285736, 321453, 392887, 415998, 428604, 554664, 642906, 785774, 831996, 857208, 1178661, 1285812, 1571548, 1663992, 2357322, 2571624, 3143096, 3535983, 4714644, 7071966, 9429288, 14143932, 28287864]

約数ペア:

[(1, 28287864), (2, 14143932), (3, 9429288), (4, 7071966), (6, 4714644), (8, 3535983), (9, 3143096), (11, 2571624), (12, 2357322), (17, 1663992), (18, 1571548), (22, 1285812), (24, 1178661), (33, 857208), (34, 831996), (36, 785774), (44, 642906), (51, 554664), (66, 428604), (68, 415998), (72, 392887), (88, 321453), (99, 285736), (102, 277332), (121, 233784), (132, 214302), (136, 207999), (153, 184888), (187, 151272), (191, 148104), (198, 142868), (204, 138666), (242, 116892), (264, 107151), (306, 92444), (363, 77928), (374, 75636), (382, 74052), (396, 71434), (408, 69333), (484, 58446), (561, 50424), (573, 49368), (612, 46222), (726, 38964), (748, 37818), (764, 37026), (792, 35717), (968, 29223), (1089, 25976), (1122, 25212), (1146, 24684), (1224, 23111), (1452, 19482), (1496, 18909), (1528, 18513), (1683, 16808), (1719, 16456), (2057, 13752), (2101, 13464), (2178, 12988), (2244, 12606), (2292, 12342), (2904, 9741), (3247, 8712), (3366, 8404), (3438, 8228), (4114, 6876), (4202, 6732), (4356, 6494), (4488, 6303), (4584, 6171)]