18938880

素因数分解:

$2^{10}\times 3^3\times 5^1\times {\mathrm{137}}^1$

素因数の和:171

約数の個数: 176

約数和(自身を含む): 67796640

約数和(自身を除く): 48857760

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, 137, 144, 160, 180, 192, 216, 240, 256, 270, 274, 288, 320, 360, 384, 411, 432, 480, 512, 540, 548, 576, 640, 685, 720, 768, 822, 864, 960, 1024, 1080, 1096, 1152, 1233, 1280, 1370, 1440, 1536, 1644, 1728, 1920, 2055, 2160, 2192, 2304, 2466, 2560, 2740, 2880, 3072, 3288, 3456, 3699, 3840, 4110, 4320, 4384, 4608, 4932, 5120, 5480, 5760, 6165, 6576, 6912, 7398, 7680, 8220, 8640, 8768, 9216, 9864, 10960, 11520, 12330, 13152, 13824, 14796, 15360, 16440, 17280, 17536, 18495, 19728, 21920, 23040, 24660, 26304, 27648, 29592, 32880, 34560, 35072, 36990, 39456, 43840, 46080, 49320, 52608, 59184, 65760, 69120, 70144, 73980, 78912, 87680, 98640, 105216, 118368, 131520, 138240, 140288, 147960, 157824, 175360, 197280, 210432, 236736, 263040, 295920, 315648, 350720, 394560, 420864, 473472, 526080, 591840, 631296, 701440, 789120, 946944, 1052160, 1183680, 1262592, 1578240, 1893888, 2104320, 2367360, 3156480, 3787776, 4734720, 6312960, 9469440, 18938880]

約数ペア:

[(1, 18938880), (2, 9469440), (3, 6312960), (4, 4734720), (5, 3787776), (6, 3156480), (8, 2367360), (9, 2104320), (10, 1893888), (12, 1578240), (15, 1262592), (16, 1183680), (18, 1052160), (20, 946944), (24, 789120), (27, 701440), (30, 631296), (32, 591840), (36, 526080), (40, 473472), (45, 420864), (48, 394560), (54, 350720), (60, 315648), (64, 295920), (72, 263040), (80, 236736), (90, 210432), (96, 197280), (108, 175360), (120, 157824), (128, 147960), (135, 140288), (137, 138240), (144, 131520), (160, 118368), (180, 105216), (192, 98640), (216, 87680), (240, 78912), (256, 73980), (270, 70144), (274, 69120), (288, 65760), (320, 59184), (360, 52608), (384, 49320), (411, 46080), (432, 43840), (480, 39456), (512, 36990), (540, 35072), (548, 34560), (576, 32880), (640, 29592), (685, 27648), (720, 26304), (768, 24660), (822, 23040), (864, 21920), (960, 19728), (1024, 18495), (1080, 17536), (1096, 17280), (1152, 16440), (1233, 15360), (1280, 14796), (1370, 13824), (1440, 13152), (1536, 12330), (1644, 11520), (1728, 10960), (1920, 9864), (2055, 9216), (2160, 8768), (2192, 8640), (2304, 8220), (2466, 7680), (2560, 7398), (2740, 6912), (2880, 6576), (3072, 6165), (3288, 5760), (3456, 5480), (3699, 5120), (3840, 4932), (4110, 4608), (4320, 4384)]