161681944

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{2423}}^1$

素因数の和:2887

約数の個数: 32

約数和(自身を含む): 319968000

約数和(自身を除く): 158286056

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 439, 878, 1756, 2423, 3512, 4846, 8341, 9692, 16682, 19384, 33364, 46037, 66728, 92074, 184148, 368296, 1063697, 2127394, 4254788, 8509576, 20210243, 40420486, 80840972, 161681944]

約数ペア:

[(1, 161681944), (2, 80840972), (4, 40420486), (8, 20210243), (19, 8509576), (38, 4254788), (76, 2127394), (152, 1063697), (439, 368296), (878, 184148), (1756, 92074), (2423, 66728), (3512, 46037), (4846, 33364), (8341, 19384), (9692, 16682)]