220191640

素因数分解:

$2^3\times 5^1\times {\mathrm{5504791}}^1$

素因数の和:5504802

約数の個数: 16

約数和(自身を含む): 495431280

約数和(自身を除く): 275239640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5504791, 11009582, 22019164, 27523955, 44038328, 55047910, 110095820, 220191640]

約数ペア:

[(1, 220191640), (2, 110095820), (4, 55047910), (5, 44038328), (8, 27523955), (10, 22019164), (20, 11009582), (40, 5504791)]