320931728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1542941}}^1$

素因数の和:1542962

約数の個数: 20

約数和(自身を含む): 669636828

約数和(自身を除く): 348705100

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1542941, 3085882, 6171764, 12343528, 20058233, 24687056, 40116466, 80232932, 160465864, 320931728]

約数ペア:

[(1, 320931728), (2, 160465864), (4, 80232932), (8, 40116466), (13, 24687056), (16, 20058233), (26, 12343528), (52, 6171764), (104, 3085882), (208, 1542941)]