20478424

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{30841}}^1$

素因数の和:30930

約数の個数: 16

約数和(自身を含む): 38860920

約数和(自身を除く): 18382496

約数列:

[1, 2, 4, 8, 83, 166, 332, 664, 30841, 61682, 123364, 246728, 2559803, 5119606, 10239212, 20478424]

約数ペア:

[(1, 20478424), (2, 10239212), (4, 5119606), (8, 2559803), (83, 246728), (166, 123364), (332, 61682), (664, 30841)]