78007090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{2647}}^1$

素因数の和:3082

約数の個数: 32

約数和(自身を含む): 160913664

約数和(自身を除く): 82906574

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 421, 842, 2105, 2647, 2947, 4210, 5294, 5894, 13235, 14735, 18529, 26470, 29470, 37058, 92645, 185290, 1114387, 2228774, 5571935, 7800709, 11143870, 15601418, 39003545, 78007090]

約数ペア:

[(1, 78007090), (2, 39003545), (5, 15601418), (7, 11143870), (10, 7800709), (14, 5571935), (35, 2228774), (70, 1114387), (421, 185290), (842, 92645), (2105, 37058), (2647, 29470), (2947, 26470), (4210, 18529), (5294, 14735), (5894, 13235)]