84000220

素因数分解:

$2^2\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{2591}}^1$

素因数の和:4221

約数の個数: 24

約数和(自身を含む): 176577408

約数和(自身を除く): 92577188

約数列:

[1, 2, 4, 5, 10, 20, 1621, 2591, 3242, 5182, 6484, 8105, 10364, 12955, 16210, 25910, 32420, 51820, 4200011, 8400022, 16800044, 21000055, 42000110, 84000220]

約数ペア:

[(1, 84000220), (2, 42000110), (4, 21000055), (5, 16800044), (10, 8400022), (20, 4200011), (1621, 51820), (2591, 32420), (3242, 25910), (5182, 16210), (6484, 12955), (8105, 10364)]