221472280

素因数分解:

$2^3\times 5^1\times {\mathrm{5536807}}^1$

素因数の和:5536818

約数の個数: 16

約数和(自身を含む): 498312720

約数和(自身を除く): 276840440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5536807, 11073614, 22147228, 27684035, 44294456, 55368070, 110736140, 221472280]

約数ペア:

[(1, 221472280), (2, 110736140), (4, 55368070), (5, 44294456), (8, 27684035), (10, 22147228), (20, 11073614), (40, 5536807)]