20767648

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1439}}^1$

素因数の和:1501

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 24955232

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 82, 88, 164, 176, 328, 352, 451, 656, 902, 1312, 1439, 1804, 2878, 3608, 5756, 7216, 11512, 14432, 15829, 23024, 31658, 46048, 58999, 63316, 117998, 126632, 235996, 253264, 471992, 506528, 648989, 943984, 1297978, 1887968, 2595956, 5191912, 10383824, 20767648]

約数ペア:

[(1, 20767648), (2, 10383824), (4, 5191912), (8, 2595956), (11, 1887968), (16, 1297978), (22, 943984), (32, 648989), (41, 506528), (44, 471992), (82, 253264), (88, 235996), (164, 126632), (176, 117998), (328, 63316), (352, 58999), (451, 46048), (656, 31658), (902, 23024), (1312, 15829), (1439, 14432), (1804, 11512), (2878, 7216), (3608, 5756)]