20711540

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4297}}^1$

素因数の和:4547

約数の個数: 24

約数和(自身を含む): 43684872

約数和(自身を除く): 22973332

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4297, 4820, 8594, 17188, 21485, 42970, 85940, 1035577, 2071154, 4142308, 5177885, 10355770, 20711540]

約数ペア:

[(1, 20711540), (2, 10355770), (4, 5177885), (5, 4142308), (10, 2071154), (20, 1035577), (241, 85940), (482, 42970), (964, 21485), (1205, 17188), (2410, 8594), (4297, 4820)]