81988616

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{238339}}^1$

素因数の和:238388

約数の個数: 16

約数和(自身を含む): 157304400

約数和(自身を除く): 75315784

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 238339, 476678, 953356, 1906712, 10248577, 20497154, 40994308, 81988616]

約数ペア:

[(1, 81988616), (2, 40994308), (4, 20497154), (8, 10248577), (43, 1906712), (86, 953356), (172, 476678), (344, 238339)]