2564691880

素因数分解:

$2^3\times 5^1\times {\mathrm{64117297}}^1$

素因数の和:64117308

約数の個数: 16

約数和(自身を含む): 5770556820

約数和(自身を除く): 3205864940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 64117297, 128234594, 256469188, 320586485, 512938376, 641172970, 1282345940, 2564691880]

約数ペア:

[(1, 2564691880), (2, 1282345940), (4, 641172970), (5, 512938376), (8, 320586485), (10, 256469188), (20, 128234594), (40, 64117297)]