81916870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{8419}}^1$

素因数の和:8572

約数の個数: 32

約数和(自身を含む): 169747200

約数和(自身を除く): 87830330

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 4865, 8419, 9730, 16838, 42095, 58933, 84190, 117866, 294665, 589330, 1170241, 2340482, 5851205, 8191687, 11702410, 16383374, 40958435, 81916870]

約数ペア:

[(1, 81916870), (2, 40958435), (5, 16383374), (7, 11702410), (10, 8191687), (14, 5851205), (35, 2340482), (70, 1170241), (139, 589330), (278, 294665), (695, 117866), (973, 84190), (1390, 58933), (1946, 42095), (4865, 16838), (8419, 9730)]