20639072

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{15731}}^1$

素因数の和:15782

約数の個数: 24

約数和(自身を含む): 41626872

約数和(自身を除く): 20987800

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 328, 656, 1312, 15731, 31462, 62924, 125848, 251696, 503392, 644971, 1289942, 2579884, 5159768, 10319536, 20639072]

約数ペア:

[(1, 20639072), (2, 10319536), (4, 5159768), (8, 2579884), (16, 1289942), (32, 644971), (41, 503392), (82, 251696), (164, 125848), (328, 62924), (656, 31462), (1312, 15731)]