66518660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{255841}}^1$

素因数の和:255863

約数の個数: 24

約数和(自身を含む): 150435096

約数和(自身を除く): 83916436

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 255841, 511682, 1023364, 1279205, 2558410, 3325933, 5116820, 6651866, 13303732, 16629665, 33259330, 66518660]

約数ペア:

[(1, 66518660), (2, 33259330), (4, 16629665), (5, 13303732), (10, 6651866), (13, 5116820), (20, 3325933), (26, 2558410), (52, 1279205), (65, 1023364), (130, 511682), (260, 255841)]