640603834

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{787}}^1\times {\mathrm{31307}}^1$

素因数の和:32109

約数の個数: 16

約数和(自身を含む): 1036169568

約数和(自身を除く): 395565734

約数列:

[1, 2, 13, 26, 787, 1574, 10231, 20462, 31307, 62614, 406991, 813982, 24638609, 49277218, 320301917, 640603834]

約数ペア:

[(1, 640603834), (2, 320301917), (13, 49277218), (26, 24638609), (787, 813982), (1574, 406991), (10231, 62614), (20462, 31307)]