81418895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{12071}}^1$

素因数の和:12166

約数の個数: 16

約数和(自身を含む): 104302080

約数和(自身を除く): 22883185

約数列:

[1, 5, 19, 71, 95, 355, 1349, 6745, 12071, 60355, 229349, 857041, 1146745, 4285205, 16283779, 81418895]

約数ペア:

[(1, 81418895), (5, 16283779), (19, 4285205), (71, 1146745), (95, 857041), (355, 229349), (1349, 60355), (6745, 12071)]