20286520

素因数分解:

$2^3\times 5^1\times {\mathrm{507163}}^1$

素因数の和:507174

約数の個数: 16

約数和(自身を含む): 45644760

約数和(自身を除く): 25358240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 507163, 1014326, 2028652, 2535815, 4057304, 5071630, 10143260, 20286520]

約数ペア:

[(1, 20286520), (2, 10143260), (4, 5071630), (5, 4057304), (8, 2535815), (10, 2028652), (20, 1014326), (40, 507163)]