161882980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1156307}}^1$

素因数の和:1156323

約数の個数: 24

約数和(自身を含む): 388519488

約数和(自身を除く): 226636508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1156307, 2312614, 4625228, 5781535, 8094149, 11563070, 16188298, 23126140, 32376596, 40470745, 80941490, 161882980]

約数ペア:

[(1, 161882980), (2, 80941490), (4, 40470745), (5, 32376596), (7, 23126140), (10, 16188298), (14, 11563070), (20, 8094149), (28, 5781535), (35, 4625228), (70, 2312614), (140, 1156307)]