20204410

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2473}}^1$

素因数の和:2542

約数の個数: 32

約数和(自身を含む): 39188160

約数和(自身を除く): 18983750

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 190, 215, 430, 817, 1634, 2473, 4085, 4946, 8170, 12365, 24730, 46987, 93974, 106339, 212678, 234935, 469870, 531695, 1063390, 2020441, 4040882, 10102205, 20204410]

約数ペア:

[(1, 20204410), (2, 10102205), (5, 4040882), (10, 2020441), (19, 1063390), (38, 531695), (43, 469870), (86, 234935), (95, 212678), (190, 106339), (215, 93974), (430, 46987), (817, 24730), (1634, 12365), (2473, 8170), (4085, 4946)]