20227792

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1231}}^1$

素因数の和:1331

約数の個数: 40

約数和(自身を含む): 42775040

約数和(自身を除く): 22547248

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 79, 104, 158, 208, 316, 632, 1027, 1231, 1264, 2054, 2462, 4108, 4924, 8216, 9848, 16003, 16432, 19696, 32006, 64012, 97249, 128024, 194498, 256048, 388996, 777992, 1264237, 1555984, 2528474, 5056948, 10113896, 20227792]

約数ペア:

[(1, 20227792), (2, 10113896), (4, 5056948), (8, 2528474), (13, 1555984), (16, 1264237), (26, 777992), (52, 388996), (79, 256048), (104, 194498), (158, 128024), (208, 97249), (316, 64012), (632, 32006), (1027, 19696), (1231, 16432), (1264, 16003), (2054, 9848), (2462, 8216), (4108, 4924)]