78041540

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{5647}}^1$

素因数の和:6347

約数の個数: 24

約数和(自身を含む): 164153472

約数和(自身を除く): 86111932

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 2764, 3455, 5647, 6910, 11294, 13820, 22588, 28235, 56470, 112940, 3902077, 7804154, 15608308, 19510385, 39020770, 78041540]

約数ペア:

[(1, 78041540), (2, 39020770), (4, 19510385), (5, 15608308), (10, 7804154), (20, 3902077), (691, 112940), (1382, 56470), (2764, 28235), (3455, 22588), (5647, 13820), (6910, 11294)]