20283440

素因数分解:

$2^4\times 5^1\times {\mathrm{253543}}^1$

素因数の和:253556

約数の個数: 20

約数和(自身を含む): 47159184

約数和(自身を除く): 26875744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 253543, 507086, 1014172, 1267715, 2028344, 2535430, 4056688, 5070860, 10141720, 20283440]

約数ペア:

[(1, 20283440), (2, 10141720), (4, 5070860), (5, 4056688), (8, 2535430), (10, 2028344), (16, 1267715), (20, 1014172), (40, 507086), (80, 253543)]