20031640

素因数分解:

$2^3\times 5^1\times {\mathrm{500791}}^1$

素因数の和:500802

約数の個数: 16

約数和(自身を含む): 45071280

約数和(自身を除く): 25039640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 500791, 1001582, 2003164, 2503955, 4006328, 5007910, 10015820, 20031640]

約数ペア:

[(1, 20031640), (2, 10015820), (4, 5007910), (5, 4006328), (8, 2503955), (10, 2003164), (20, 1001582), (40, 500791)]