138240

素因数分解:

$2^{10}\times 3^3\times 5^1$

素因数の和:34

約数の個数: 88

約数和(自身を含む): 491280

約数和(自身を除く): 353040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 512, 540, 576, 640, 720, 768, 864, 960, 1024, 1080, 1152, 1280, 1440, 1536, 1728, 1920, 2160, 2304, 2560, 2880, 3072, 3456, 3840, 4320, 4608, 5120, 5760, 6912, 7680, 8640, 9216, 11520, 13824, 15360, 17280, 23040, 27648, 34560, 46080, 69120, 138240]

約数ペア:

[(1, 138240), (2, 69120), (3, 46080), (4, 34560), (5, 27648), (6, 23040), (8, 17280), (9, 15360), (10, 13824), (12, 11520), (15, 9216), (16, 8640), (18, 7680), (20, 6912), (24, 5760), (27, 5120), (30, 4608), (32, 4320), (36, 3840), (40, 3456), (45, 3072), (48, 2880), (54, 2560), (60, 2304), (64, 2160), (72, 1920), (80, 1728), (90, 1536), (96, 1440), (108, 1280), (120, 1152), (128, 1080), (135, 1024), (144, 960), (160, 864), (180, 768), (192, 720), (216, 640), (240, 576), (256, 540), (270, 512), (288, 480), (320, 432), (360, 384)]