20711280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86297}}^1$

素因数の和:86313

約数の個数: 40

約数和(自身を含む): 64205712

約数和(自身を除く): 43494432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86297, 172594, 258891, 345188, 431485, 517782, 690376, 862970, 1035564, 1294455, 1380752, 1725940, 2071128, 2588910, 3451880, 4142256, 5177820, 6903760, 10355640, 20711280]

約数ペア:

[(1, 20711280), (2, 10355640), (3, 6903760), (4, 5177820), (5, 4142256), (6, 3451880), (8, 2588910), (10, 2071128), (12, 1725940), (15, 1380752), (16, 1294455), (20, 1035564), (24, 862970), (30, 690376), (40, 517782), (48, 431485), (60, 345188), (80, 258891), (120, 172594), (240, 86297)]