81989845

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{887}}^1$

素因数の和:1057

約数の個数: 32

約数和(自身を含む): 119347200

約数和(自身を除く): 37357355

約数列:

[1, 5, 7, 19, 35, 95, 133, 139, 665, 695, 887, 973, 2641, 4435, 4865, 6209, 13205, 16853, 18487, 31045, 84265, 92435, 117971, 123293, 589855, 616465, 863051, 2342567, 4315255, 11712835, 16397969, 81989845]

約数ペア:

[(1, 81989845), (5, 16397969), (7, 11712835), (19, 4315255), (35, 2342567), (95, 863051), (133, 616465), (139, 589855), (665, 123293), (695, 117971), (887, 92435), (973, 84265), (2641, 31045), (4435, 18487), (4865, 16853), (6209, 13205)]