71661672008

素因数分解:

$2^3\times {\mathrm{409}}^1\times {\mathrm{21901489}}^1$

素因数の和:21901904

約数の個数: 16

約数和(自身を含む): 134694163500

約数和(自身を除く): 63032491492

約数列:

[1, 2, 4, 8, 409, 818, 1636, 3272, 21901489, 43802978, 87605956, 175211912, 8957709001, 17915418002, 35830836004, 71661672008]

約数ペア:

[(1, 71661672008), (2, 35830836004), (4, 17915418002), (8, 8957709001), (409, 175211912), (818, 87605956), (1636, 43802978), (3272, 21901489)]