19991040

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:182

約数の個数: 160

約数和(自身を含む): 67763520

約数和(自身を除く): 47772480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 64, 76, 80, 95, 96, 114, 120, 128, 137, 152, 160, 190, 192, 228, 240, 256, 274, 285, 304, 320, 380, 384, 411, 456, 480, 512, 548, 570, 608, 640, 685, 760, 768, 822, 912, 960, 1096, 1140, 1216, 1280, 1370, 1520, 1536, 1644, 1824, 1920, 2055, 2192, 2280, 2432, 2560, 2603, 2740, 3040, 3288, 3648, 3840, 4110, 4384, 4560, 4864, 5206, 5480, 6080, 6576, 7296, 7680, 7809, 8220, 8768, 9120, 9728, 10412, 10960, 12160, 13015, 13152, 14592, 15618, 16440, 17536, 18240, 20824, 21920, 24320, 26030, 26304, 29184, 31236, 32880, 35072, 36480, 39045, 41648, 43840, 48640, 52060, 52608, 62472, 65760, 70144, 72960, 78090, 83296, 87680, 104120, 105216, 124944, 131520, 145920, 156180, 166592, 175360, 208240, 210432, 249888, 263040, 312360, 333184, 350720, 416480, 499776, 526080, 624720, 666368, 832960, 999552, 1052160, 1249440, 1332736, 1665920, 1999104, 2498880, 3331840, 3998208, 4997760, 6663680, 9995520, 19991040]

約数ペア:

[(1, 19991040), (2, 9995520), (3, 6663680), (4, 4997760), (5, 3998208), (6, 3331840), (8, 2498880), (10, 1999104), (12, 1665920), (15, 1332736), (16, 1249440), (19, 1052160), (20, 999552), (24, 832960), (30, 666368), (32, 624720), (38, 526080), (40, 499776), (48, 416480), (57, 350720), (60, 333184), (64, 312360), (76, 263040), (80, 249888), (95, 210432), (96, 208240), (114, 175360), (120, 166592), (128, 156180), (137, 145920), (152, 131520), (160, 124944), (190, 105216), (192, 104120), (228, 87680), (240, 83296), (256, 78090), (274, 72960), (285, 70144), (304, 65760), (320, 62472), (380, 52608), (384, 52060), (411, 48640), (456, 43840), (480, 41648), (512, 39045), (548, 36480), (570, 35072), (608, 32880), (640, 31236), (685, 29184), (760, 26304), (768, 26030), (822, 24320), (912, 21920), (960, 20824), (1096, 18240), (1140, 17536), (1216, 16440), (1280, 15618), (1370, 14592), (1520, 13152), (1536, 13015), (1644, 12160), (1824, 10960), (1920, 10412), (2055, 9728), (2192, 9120), (2280, 8768), (2432, 8220), (2560, 7809), (2603, 7680), (2740, 7296), (3040, 6576), (3288, 6080), (3648, 5480), (3840, 5206), (4110, 4864), (4384, 4560)]