20907135280

素因数分解:

$2^4\times 5^1\times {\mathrm{261339191}}^1$

素因数の和:261339204

約数の個数: 20

約数和(自身を含む): 48609089712

約数和(自身を除く): 27701954432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 261339191, 522678382, 1045356764, 1306695955, 2090713528, 2613391910, 4181427056, 5226783820, 10453567640, 20907135280]

約数ペア:

[(1, 20907135280), (2, 10453567640), (4, 5226783820), (5, 4181427056), (8, 2613391910), (10, 2090713528), (16, 1306695955), (20, 1045356764), (40, 522678382), (80, 261339191)]