20717000

素因数分解:

$2^3\times 5^3\times {\mathrm{20717}}^1$

素因数の和:20738

約数の個数: 32

約数和(自身を含む): 48480120

約数和(自身を除く): 27763120

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 20717, 41434, 82868, 103585, 165736, 207170, 414340, 517925, 828680, 1035850, 2071700, 2589625, 4143400, 5179250, 10358500, 20717000]

約数ペア:

[(1, 20717000), (2, 10358500), (4, 5179250), (5, 4143400), (8, 2589625), (10, 2071700), (20, 1035850), (25, 828680), (40, 517925), (50, 414340), (100, 207170), (125, 165736), (200, 103585), (250, 82868), (500, 41434), (1000, 20717)]