19180280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{68501}}^1$

素因数の和:68519

約数の個数: 32

約数和(自身を含む): 49321440

約数和(自身を除く): 30141160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 68501, 137002, 274004, 342505, 479507, 548008, 685010, 959014, 1370020, 1918028, 2397535, 2740040, 3836056, 4795070, 9590140, 19180280]

約数ペア:

[(1, 19180280), (2, 9590140), (4, 4795070), (5, 3836056), (7, 2740040), (8, 2397535), (10, 1918028), (14, 1370020), (20, 959014), (28, 685010), (35, 548008), (40, 479507), (56, 342505), (70, 274004), (140, 137002), (280, 68501)]