18687990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{2003}}^1$

素因数の和:2324

約数の個数: 32

約数和(自身を含む): 45017856

約数和(自身を除く): 26329866

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 311, 622, 933, 1555, 1866, 2003, 3110, 4006, 4665, 6009, 9330, 10015, 12018, 20030, 30045, 60090, 622933, 1245866, 1868799, 3114665, 3737598, 6229330, 9343995, 18687990]

約数ペア:

[(1, 18687990), (2, 9343995), (3, 6229330), (5, 3737598), (6, 3114665), (10, 1868799), (15, 1245866), (30, 622933), (311, 60090), (622, 30045), (933, 20030), (1555, 12018), (1866, 10015), (2003, 9330), (3110, 6009), (4006, 4665)]