83680220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{321847}}^1$

素因数の和:321869

約数の個数: 24

約数和(自身を含む): 189246624

約数和(自身を除く): 105566404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 321847, 643694, 1287388, 1609235, 3218470, 4184011, 6436940, 8368022, 16736044, 20920055, 41840110, 83680220]

約数ペア:

[(1, 83680220), (2, 41840110), (4, 20920055), (5, 16736044), (10, 8368022), (13, 6436940), (20, 4184011), (26, 3218470), (52, 1609235), (65, 1287388), (130, 643694), (260, 321847)]