66774860

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{4127}}^1$

素因数の和:4945

約数の個数: 24

約数和(自身を含む): 140434560

約数和(自身を除く): 73659700

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 4127, 8090, 8254, 16180, 16508, 20635, 41270, 82540, 3338743, 6677486, 13354972, 16693715, 33387430, 66774860]

約数ペア:

[(1, 66774860), (2, 33387430), (4, 16693715), (5, 13354972), (10, 6677486), (20, 3338743), (809, 82540), (1618, 41270), (3236, 20635), (4045, 16508), (4127, 16180), (8090, 8254)]