121917980

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{33679}}^1$

素因数の和:33869

約数の個数: 24

約数和(自身を含む): 257449920

約数和(自身を除く): 135531940

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 33679, 67358, 134716, 168395, 336790, 673580, 6095899, 12191798, 24383596, 30479495, 60958990, 121917980]

約数ペア:

[(1, 121917980), (2, 60958990), (4, 30479495), (5, 24383596), (10, 12191798), (20, 6095899), (181, 673580), (362, 336790), (724, 168395), (905, 134716), (1810, 67358), (3620, 33679)]