209888880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{874537}}^1$

素因数の和:874553

約数の個数: 40

約数和(自身を含む): 650656272

約数和(自身を除く): 440767392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 874537, 1749074, 2623611, 3498148, 4372685, 5247222, 6996296, 8745370, 10494444, 13118055, 13992592, 17490740, 20988888, 26236110, 34981480, 41977776, 52472220, 69962960, 104944440, 209888880]

約数ペア:

[(1, 209888880), (2, 104944440), (3, 69962960), (4, 52472220), (5, 41977776), (6, 34981480), (8, 26236110), (10, 20988888), (12, 17490740), (15, 13992592), (16, 13118055), (20, 10494444), (24, 8745370), (30, 6996296), (40, 5247222), (48, 4372685), (60, 3498148), (80, 2623611), (120, 1749074), (240, 874537)]