20400256

素因数分解:

$2^7\times {\mathrm{47}}^1\times {\mathrm{3391}}^1$

素因数の和:3452

約数の個数: 32

約数和(自身を含む): 41518080

約数和(自身を除く): 21117824

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 128, 188, 376, 752, 1504, 3008, 3391, 6016, 6782, 13564, 27128, 54256, 108512, 159377, 217024, 318754, 434048, 637508, 1275016, 2550032, 5100064, 10200128, 20400256]

約数ペア:

[(1, 20400256), (2, 10200128), (4, 5100064), (8, 2550032), (16, 1275016), (32, 637508), (47, 434048), (64, 318754), (94, 217024), (128, 159377), (188, 108512), (376, 54256), (752, 27128), (1504, 13564), (3008, 6782), (3391, 6016)]