218965720

素因数分解:

$2^3\times 5^1\times {\mathrm{5474143}}^1$

素因数の和:5474154

約数の個数: 16

約数和(自身を含む): 492672960

約数和(自身を除く): 273707240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5474143, 10948286, 21896572, 27370715, 43793144, 54741430, 109482860, 218965720]

約数ペア:

[(1, 218965720), (2, 109482860), (4, 54741430), (5, 43793144), (8, 27370715), (10, 21896572), (20, 10948286), (40, 5474143)]