51340840

素因数分解:

$2^3\times 5^1\times {\mathrm{1283521}}^1$

素因数の和:1283532

約数の個数: 16

約数和(自身を含む): 115516980

約数和(自身を除く): 64176140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1283521, 2567042, 5134084, 6417605, 10268168, 12835210, 25670420, 51340840]

約数ペア:

[(1, 51340840), (2, 25670420), (4, 12835210), (5, 10268168), (8, 6417605), (10, 5134084), (20, 2567042), (40, 1283521)]