42042640

素因数分解:

$2^4\times 5^1\times {\mathrm{525533}}^1$

素因数の和:525546

約数の個数: 20

約数和(自身を含む): 97749324

約数和(自身を除く): 55706684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 525533, 1051066, 2102132, 2627665, 4204264, 5255330, 8408528, 10510660, 21021320, 42042640]

約数ペア:

[(1, 42042640), (2, 21021320), (4, 10510660), (5, 8408528), (8, 5255330), (10, 4204264), (16, 2627665), (20, 2102132), (40, 1051066), (80, 525533)]