1540280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{5501}}^1$

素因数の和:5519

約数の個数: 32

約数和(自身を含む): 3961440

約数和(自身を除く): 2421160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 5501, 11002, 22004, 27505, 38507, 44008, 55010, 77014, 110020, 154028, 192535, 220040, 308056, 385070, 770140, 1540280]

約数ペア:

[(1, 1540280), (2, 770140), (4, 385070), (5, 308056), (7, 220040), (8, 192535), (10, 154028), (14, 110020), (20, 77014), (28, 55010), (35, 44008), (40, 38507), (56, 27505), (70, 22004), (140, 11002), (280, 5501)]