20716780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147977}}^1$

素因数の和:147993

約数の個数: 24

約数和(自身を含む): 49720608

約数和(自身を除く): 29003828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147977, 295954, 591908, 739885, 1035839, 1479770, 2071678, 2959540, 4143356, 5179195, 10358390, 20716780]

約数ペア:

[(1, 20716780), (2, 10358390), (4, 5179195), (5, 4143356), (7, 2959540), (10, 2071678), (14, 1479770), (20, 1035839), (28, 739885), (35, 591908), (70, 295954), (140, 147977)]