81181965

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{643}}^1$

素因数の和:1113

約数の個数: 32

約数和(自身を含む): 137249280

約数和(自身を除く): 56067315

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 443, 643, 1329, 1929, 2215, 3215, 6645, 8417, 9645, 12217, 25251, 36651, 42085, 61085, 126255, 183255, 284849, 854547, 1424245, 4272735, 5412131, 16236393, 27060655, 81181965]

約数ペア:

[(1, 81181965), (3, 27060655), (5, 16236393), (15, 5412131), (19, 4272735), (57, 1424245), (95, 854547), (285, 284849), (443, 183255), (643, 126255), (1329, 61085), (1929, 42085), (2215, 36651), (3215, 25251), (6645, 12217), (8417, 9645)]