81436576

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{195761}}^1$

素因数の和:195784

約数の個数: 24

約数和(自身を含む): 172662084

約数和(自身を除く): 91225508

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 195761, 391522, 783044, 1566088, 2544893, 3132176, 5089786, 6264352, 10179572, 20359144, 40718288, 81436576]

約数ペア:

[(1, 81436576), (2, 40718288), (4, 20359144), (8, 10179572), (13, 6264352), (16, 5089786), (26, 3132176), (32, 2544893), (52, 1566088), (104, 783044), (208, 391522), (416, 195761)]