660565540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{465187}}^1$

素因数の和:465267

約数の個数: 24

約数和(自身を含む): 1406728512

約数和(自身を除く): 746162972

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 465187, 930374, 1860748, 2325935, 4651870, 9303740, 33028277, 66056554, 132113108, 165141385, 330282770, 660565540]

約数ペア:

[(1, 660565540), (2, 330282770), (4, 165141385), (5, 132113108), (10, 66056554), (20, 33028277), (71, 9303740), (142, 4651870), (284, 2325935), (355, 1860748), (710, 930374), (1420, 465187)]