18888936780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{44973659}}^1$

素因数の和:44973678

約数の個数: 48

約数和(自身を含む): 60444599040

約数和(自身を除く): 41555662260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 44973659, 89947318, 134920977, 179894636, 224868295, 269841954, 314815613, 449736590, 539683908, 629631226, 674604885, 899473180, 944446839, 1259262452, 1349209770, 1574078065, 1888893678, 2698419540, 3148156130, 3777787356, 4722234195, 6296312260, 9444468390, 18888936780]

約数ペア:

[(1, 18888936780), (2, 9444468390), (3, 6296312260), (4, 4722234195), (5, 3777787356), (6, 3148156130), (7, 2698419540), (10, 1888893678), (12, 1574078065), (14, 1349209770), (15, 1259262452), (20, 944446839), (21, 899473180), (28, 674604885), (30, 629631226), (35, 539683908), (42, 449736590), (60, 314815613), (70, 269841954), (84, 224868295), (105, 179894636), (140, 134920977), (210, 89947318), (420, 44973659)]