2045018420

素因数分解:

$2^2\times 5^1\times {\mathrm{102250921}}^1$

素因数の和:102250930

約数の個数: 12

約数和(自身を含む): 4294538724

約数和(自身を除く): 2249520304

約数列:

[1, 2, 4, 5, 10, 20, 102250921, 204501842, 409003684, 511254605, 1022509210, 2045018420]

約数ペア:

[(1, 2045018420), (2, 1022509210), (4, 511254605), (5, 409003684), (10, 204501842), (20, 102250921)]