19962520

素因数分解:

$2^3\times 5^1\times {\mathrm{499063}}^1$

素因数の和:499074

約数の個数: 16

約数和(自身を含む): 44915760

約数和(自身を除く): 24953240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499063, 998126, 1996252, 2495315, 3992504, 4990630, 9981260, 19962520]

約数ペア:

[(1, 19962520), (2, 9981260), (4, 4990630), (5, 3992504), (8, 2495315), (10, 1996252), (20, 998126), (40, 499063)]