218748280

素因数分解:

$2^3\times 5^1\times {\mathrm{5468707}}^1$

素因数の和:5468718

約数の個数: 16

約数和(自身を含む): 492183720

約数和(自身を除く): 273435440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5468707, 10937414, 21874828, 27343535, 43749656, 54687070, 109374140, 218748280]

約数ペア:

[(1, 218748280), (2, 109374140), (4, 54687070), (5, 43749656), (8, 27343535), (10, 21874828), (20, 10937414), (40, 5468707)]