20009290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1451}}^1$

素因数の和:1662

約数の個数: 32

約数和(自身を含む): 41399424

約数和(自身を除く): 21390134

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 197, 394, 985, 1379, 1451, 1970, 2758, 2902, 6895, 7255, 10157, 13790, 14510, 20314, 50785, 101570, 285847, 571694, 1429235, 2000929, 2858470, 4001858, 10004645, 20009290]

約数ペア:

[(1, 20009290), (2, 10004645), (5, 4001858), (7, 2858470), (10, 2000929), (14, 1429235), (35, 571694), (70, 285847), (197, 101570), (394, 50785), (985, 20314), (1379, 14510), (1451, 13790), (1970, 10157), (2758, 7255), (2902, 6895)]