20688128

素因数分解:

$2^8\times {\mathrm{211}}^1\times {\mathrm{383}}^1$

素因数の和:610

約数の個数: 36

約数和(自身を含む): 41599488

約数和(自身を除く): 20911360

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 211, 256, 383, 422, 766, 844, 1532, 1688, 3064, 3376, 6128, 6752, 12256, 13504, 24512, 27008, 49024, 54016, 80813, 98048, 161626, 323252, 646504, 1293008, 2586016, 5172032, 10344064, 20688128]

約数ペア:

[(1, 20688128), (2, 10344064), (4, 5172032), (8, 2586016), (16, 1293008), (32, 646504), (64, 323252), (128, 161626), (211, 98048), (256, 80813), (383, 54016), (422, 49024), (766, 27008), (844, 24512), (1532, 13504), (1688, 12256), (3064, 6752), (3376, 6128)]