720260028

素因数分解:

$2^2\times 3^2\times {\mathrm{20007223}}^1$

素因数の和:20007233

約数の個数: 18

約数和(自身を含む): 1820657384

約数和(自身を除く): 1100397356

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 20007223, 40014446, 60021669, 80028892, 120043338, 180065007, 240086676, 360130014, 720260028]

約数ペア:

[(1, 720260028), (2, 360130014), (3, 240086676), (4, 180065007), (6, 120043338), (9, 80028892), (12, 60021669), (18, 40014446), (36, 20007223)]