81657056

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{196291}}^1$

素因数の和:196314

約数の個数: 24

約数和(自身を含む): 173129544

約数和(自身を除く): 91472488

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 196291, 392582, 785164, 1570328, 2551783, 3140656, 5103566, 6281312, 10207132, 20414264, 40828528, 81657056]

約数ペア:

[(1, 81657056), (2, 40828528), (4, 20414264), (8, 10207132), (13, 6281312), (16, 5103566), (26, 3140656), (32, 2551783), (52, 1570328), (104, 785164), (208, 392582), (416, 196291)]