78891190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{2677}}^1$

素因数の和:3112

約数の個数: 32

約数和(自身を含む): 162736704

約数和(自身を除く): 83845514

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 421, 842, 2105, 2677, 2947, 4210, 5354, 5894, 13385, 14735, 18739, 26770, 29470, 37478, 93695, 187390, 1127017, 2254034, 5635085, 7889119, 11270170, 15778238, 39445595, 78891190]

約数ペア:

[(1, 78891190), (2, 39445595), (5, 15778238), (7, 11270170), (10, 7889119), (14, 5635085), (35, 2254034), (70, 1127017), (421, 187390), (842, 93695), (2105, 37478), (2677, 29470), (2947, 26770), (4210, 18739), (5354, 14735), (5894, 13385)]