4080839984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19619423}}^1$

素因数の和:19619444

約数の個数: 20

約数和(自身を含む): 8514830016

約数和(自身を除く): 4433990032

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 19619423, 39238846, 78477692, 156955384, 255052499, 313910768, 510104998, 1020209996, 2040419992, 4080839984]

約数ペア:

[(1, 4080839984), (2, 2040419992), (4, 1020209996), (8, 510104998), (13, 313910768), (16, 255052499), (26, 156955384), (52, 78477692), (104, 39238846), (208, 19619423)]