81661312

素因数分解:

$2^7\times {\mathrm{397}}^1\times {\mathrm{1607}}^1$

素因数の和:2018

約数の個数: 32

約数和(自身を含む): 163195920

約数和(自身を除く): 81534608

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 397, 794, 1588, 1607, 3176, 3214, 6352, 6428, 12704, 12856, 25408, 25712, 50816, 51424, 102848, 205696, 637979, 1275958, 2551916, 5103832, 10207664, 20415328, 40830656, 81661312]

約数ペア:

[(1, 81661312), (2, 40830656), (4, 20415328), (8, 10207664), (16, 5103832), (32, 2551916), (64, 1275958), (128, 637979), (397, 205696), (794, 102848), (1588, 51424), (1607, 50816), (3176, 25712), (3214, 25408), (6352, 12856), (6428, 12704)]