20347583990

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28658569}}^1$

素因数の和:28658647

約数の個数: 16

約数和(自身を含む): 37141506720

約数和(自身を除く): 16793922730

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28658569, 57317138, 143292845, 286585690, 2034758399, 4069516798, 10173791995, 20347583990]

約数ペア:

[(1, 20347583990), (2, 10173791995), (5, 4069516798), (10, 2034758399), (71, 286585690), (142, 143292845), (355, 57317138), (710, 28658569)]