720378256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{3463357}}^1$

素因数の和:3463378

約数の個数: 20

約数和(自身を含む): 1503097372

約数和(自身を除く): 782719116

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 3463357, 6926714, 13853428, 27706856, 45023641, 55413712, 90047282, 180094564, 360189128, 720378256]

約数ペア:

[(1, 720378256), (2, 360189128), (4, 180094564), (8, 90047282), (13, 55413712), (16, 45023641), (26, 27706856), (52, 13853428), (104, 6926714), (208, 3463357)]