2542455280

素因数分解:

$2^4\times 5^1\times {\mathrm{31780691}}^1$

素因数の和:31780704

約数の個数: 20

約数和(自身を含む): 5911208712

約数和(自身を除く): 3368753432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 31780691, 63561382, 127122764, 158903455, 254245528, 317806910, 508491056, 635613820, 1271227640, 2542455280]

約数ペア:

[(1, 2542455280), (2, 1271227640), (4, 635613820), (5, 508491056), (8, 317806910), (10, 254245528), (16, 158903455), (20, 127122764), (40, 63561382), (80, 31780691)]