66899440

素因数分解:

$2^4\times 5^1\times {\mathrm{836243}}^1$

素因数の和:836256

約数の個数: 20

約数和(自身を含む): 155541384

約数和(自身を除く): 88641944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 836243, 1672486, 3344972, 4181215, 6689944, 8362430, 13379888, 16724860, 33449720, 66899440]

約数ペア:

[(1, 66899440), (2, 33449720), (4, 16724860), (5, 13379888), (8, 8362430), (10, 6689944), (16, 4181215), (20, 3344972), (40, 1672486), (80, 836243)]