19994640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{83311}}^1$

素因数の和:83327

約数の個数: 40

約数和(自身を含む): 61984128

約数和(自身を除く): 41989488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 83311, 166622, 249933, 333244, 416555, 499866, 666488, 833110, 999732, 1249665, 1332976, 1666220, 1999464, 2499330, 3332440, 3998928, 4998660, 6664880, 9997320, 19994640]

約数ペア:

[(1, 19994640), (2, 9997320), (3, 6664880), (4, 4998660), (5, 3998928), (6, 3332440), (8, 2499330), (10, 1999464), (12, 1666220), (15, 1332976), (16, 1249665), (20, 999732), (24, 833110), (30, 666488), (40, 499866), (48, 416555), (60, 333244), (80, 249933), (120, 166622), (240, 83311)]