261511680

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2003}}^1$

素因数の和:2046

約数の個数: 160

約数和(自身を含む): 885639744

約数和(自身を除く): 624128064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 256, 272, 320, 340, 384, 408, 480, 510, 512, 544, 640, 680, 768, 816, 960, 1020, 1088, 1280, 1360, 1536, 1632, 1920, 2003, 2040, 2176, 2560, 2720, 3264, 3840, 4006, 4080, 4352, 5440, 6009, 6528, 7680, 8012, 8160, 8704, 10015, 10880, 12018, 13056, 16024, 16320, 20030, 21760, 24036, 26112, 30045, 32048, 32640, 34051, 40060, 43520, 48072, 60090, 64096, 65280, 68102, 80120, 96144, 102153, 120180, 128192, 130560, 136204, 160240, 170255, 192288, 204306, 240360, 256384, 272408, 320480, 340510, 384576, 408612, 480720, 510765, 512768, 544816, 640960, 681020, 769152, 817224, 961440, 1021530, 1025536, 1089632, 1281920, 1362040, 1538304, 1634448, 1922880, 2043060, 2179264, 2563840, 2724080, 3076608, 3268896, 3845760, 4086120, 4358528, 5127680, 5448160, 6537792, 7691520, 8172240, 8717056, 10896320, 13075584, 15383040, 16344480, 17434112, 21792640, 26151168, 32688960, 43585280, 52302336, 65377920, 87170560, 130755840, 261511680]

約数ペア:

[(1, 261511680), (2, 130755840), (3, 87170560), (4, 65377920), (5, 52302336), (6, 43585280), (8, 32688960), (10, 26151168), (12, 21792640), (15, 17434112), (16, 16344480), (17, 15383040), (20, 13075584), (24, 10896320), (30, 8717056), (32, 8172240), (34, 7691520), (40, 6537792), (48, 5448160), (51, 5127680), (60, 4358528), (64, 4086120), (68, 3845760), (80, 3268896), (85, 3076608), (96, 2724080), (102, 2563840), (120, 2179264), (128, 2043060), (136, 1922880), (160, 1634448), (170, 1538304), (192, 1362040), (204, 1281920), (240, 1089632), (255, 1025536), (256, 1021530), (272, 961440), (320, 817224), (340, 769152), (384, 681020), (408, 640960), (480, 544816), (510, 512768), (512, 510765), (544, 480720), (640, 408612), (680, 384576), (768, 340510), (816, 320480), (960, 272408), (1020, 256384), (1088, 240360), (1280, 204306), (1360, 192288), (1536, 170255), (1632, 160240), (1920, 136204), (2003, 130560), (2040, 128192), (2176, 120180), (2560, 102153), (2720, 96144), (3264, 80120), (3840, 68102), (4006, 65280), (4080, 64096), (4352, 60090), (5440, 48072), (6009, 43520), (6528, 40060), (7680, 34051), (8012, 32640), (8160, 32048), (8704, 30045), (10015, 26112), (10880, 24036), (12018, 21760), (13056, 20030), (16024, 16320)]