215971510

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{198139}}^1$

素因数の和:198255

約数の個数: 16

約数和(自身を含む): 392317200

約数和(自身を除く): 176345690

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 198139, 396278, 990695, 1981390, 21597151, 43194302, 107985755, 215971510]

約数ペア:

[(1, 215971510), (2, 107985755), (5, 43194302), (10, 21597151), (109, 1981390), (218, 990695), (545, 396278), (1090, 198139)]