7788484820

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1109}}^1\times {\mathrm{1399}}^1$

素因数の和:2768

約数の個数: 48

約数和(自身を含む): 16447536000

約数和(自身を除く): 8659051180

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1109, 1255, 1399, 2218, 2510, 2798, 4436, 5020, 5545, 5596, 6995, 11090, 13990, 22180, 27980, 278359, 351149, 556718, 702298, 1113436, 1391795, 1404596, 1551491, 1755745, 2783590, 3102982, 3511490, 5567180, 6205964, 7022980, 7757455, 15514910, 31029820, 389424241, 778848482, 1557696964, 1947121205, 3894242410, 7788484820]

約数ペア:

[(1, 7788484820), (2, 3894242410), (4, 1947121205), (5, 1557696964), (10, 778848482), (20, 389424241), (251, 31029820), (502, 15514910), (1004, 7757455), (1109, 7022980), (1255, 6205964), (1399, 5567180), (2218, 3511490), (2510, 3102982), (2798, 2783590), (4436, 1755745), (5020, 1551491), (5545, 1404596), (5596, 1391795), (6995, 1113436), (11090, 702298), (13990, 556718), (22180, 351149), (27980, 278359)]