2119580

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{809}}^1$

素因数の和:949

約数の個数: 24

約数和(自身を含む): 4490640

約数和(自身を除く): 2371060

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 809, 1310, 1618, 2620, 3236, 4045, 8090, 16180, 105979, 211958, 423916, 529895, 1059790, 2119580]

約数ペア:

[(1, 2119580), (2, 1059790), (4, 529895), (5, 423916), (10, 211958), (20, 105979), (131, 16180), (262, 8090), (524, 4045), (655, 3236), (809, 2620), (1310, 1618)]