19762020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109789}}^1$

素因数の和:109804

約数の個数: 36

約数和(自身を含む): 59945340

約数和(自身を除く): 40183320

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 109789, 219578, 329367, 439156, 548945, 658734, 988101, 1097890, 1317468, 1646835, 1976202, 2195780, 3293670, 3952404, 4940505, 6587340, 9881010, 19762020]

約数ペア:

[(1, 19762020), (2, 9881010), (3, 6587340), (4, 4940505), (5, 3952404), (6, 3293670), (9, 2195780), (10, 1976202), (12, 1646835), (15, 1317468), (18, 1097890), (20, 988101), (30, 658734), (36, 548945), (45, 439156), (60, 329367), (90, 219578), (180, 109789)]