164564780

素因数分解:

$2^2\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{8059}}^1$

素因数の和:9089

約数の個数: 24

約数和(自身を含む): 345967440

約数和(自身を除く): 181402660

約数列:

[1, 2, 4, 5, 10, 20, 1021, 2042, 4084, 5105, 8059, 10210, 16118, 20420, 32236, 40295, 80590, 161180, 8228239, 16456478, 32912956, 41141195, 82282390, 164564780]

約数ペア:

[(1, 164564780), (2, 82282390), (4, 41141195), (5, 32912956), (10, 16456478), (20, 8228239), (1021, 161180), (2042, 80590), (4084, 40295), (5105, 32236), (8059, 20420), (10210, 16118)]