81265555

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{643}}^1$

素因数の和:835

約数の個数: 32

約数和(自身を含む): 117218304

約数和(自身を除く): 35952749

約数列:

[1, 5, 7, 23, 35, 115, 157, 161, 643, 785, 805, 1099, 3215, 3611, 4501, 5495, 14789, 18055, 22505, 25277, 73945, 100951, 103523, 126385, 504755, 517615, 706657, 2321873, 3533285, 11609365, 16253111, 81265555]

約数ペア:

[(1, 81265555), (5, 16253111), (7, 11609365), (23, 3533285), (35, 2321873), (115, 706657), (157, 517615), (161, 504755), (643, 126385), (785, 103523), (805, 100951), (1099, 73945), (3215, 25277), (3611, 22505), (4501, 18055), (5495, 14789)]