66078640

素因数分解:

$2^4\times 5^1\times {\mathrm{825983}}^1$

素因数の和:825996

約数の個数: 20

約数和(自身を含む): 153633024

約数和(自身を除く): 87554384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 825983, 1651966, 3303932, 4129915, 6607864, 8259830, 13215728, 16519660, 33039320, 66078640]

約数ペア:

[(1, 66078640), (2, 33039320), (4, 16519660), (5, 13215728), (8, 8259830), (10, 6607864), (16, 4129915), (20, 3303932), (40, 1651966), (80, 825983)]