181664980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1297607}}^1$

素因数の和:1297623

約数の個数: 24

約数和(自身を含む): 435996288

約数和(自身を除く): 254331308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1297607, 2595214, 5190428, 6488035, 9083249, 12976070, 18166498, 25952140, 36332996, 45416245, 90832490, 181664980]

約数ペア:

[(1, 181664980), (2, 90832490), (4, 45416245), (5, 36332996), (7, 25952140), (10, 18166498), (14, 12976070), (20, 9083249), (28, 6488035), (35, 5190428), (70, 2595214), (140, 1297607)]