81655845

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{320219}}^1$

素因数の和:320244

約数の個数: 16

約数和(自身を含む): 138335040

約数和(自身を除く): 56679195

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 320219, 960657, 1601095, 4803285, 5443723, 16331169, 27218615, 81655845]

約数ペア:

[(1, 81655845), (3, 27218615), (5, 16331169), (15, 5443723), (17, 4803285), (51, 1601095), (85, 960657), (255, 320219)]