665637128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{6400357}}^1$

素因数の和:6400376

約数の個数: 16

約数和(自身を含む): 1344075180

約数和(自身を除く): 678438052

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 6400357, 12800714, 25601428, 51202856, 83204641, 166409282, 332818564, 665637128]

約数ペア:

[(1, 665637128), (2, 332818564), (4, 166409282), (8, 83204641), (13, 51202856), (26, 25601428), (52, 12800714), (104, 6400357)]