20567456

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1009}}^1$

素因数の和:1046

約数の個数: 72

約数和(自身を含む): 50776740

約数和(自身を除く): 30209284

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 224, 364, 392, 416, 637, 728, 784, 1009, 1274, 1456, 1568, 2018, 2548, 2912, 4036, 5096, 7063, 8072, 10192, 13117, 14126, 16144, 20384, 26234, 28252, 32288, 49441, 52468, 56504, 91819, 98882, 104936, 113008, 183638, 197764, 209872, 226016, 367276, 395528, 419744, 642733, 734552, 791056, 1285466, 1469104, 1582112, 2570932, 2938208, 5141864, 10283728, 20567456]

約数ペア:

[(1, 20567456), (2, 10283728), (4, 5141864), (7, 2938208), (8, 2570932), (13, 1582112), (14, 1469104), (16, 1285466), (26, 791056), (28, 734552), (32, 642733), (49, 419744), (52, 395528), (56, 367276), (91, 226016), (98, 209872), (104, 197764), (112, 183638), (182, 113008), (196, 104936), (208, 98882), (224, 91819), (364, 56504), (392, 52468), (416, 49441), (637, 32288), (728, 28252), (784, 26234), (1009, 20384), (1274, 16144), (1456, 14126), (1568, 13117), (2018, 10192), (2548, 8072), (2912, 7063), (4036, 5096)]