31380480

素因数分解:

$2^{10}\times 3^3\times 5^1\times {\mathrm{227}}^1$

素因数の和:261

約数の個数: 176

約数和(自身を含む): 112011840

約数和(自身を除く): 80631360

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, 227, 240, 256, 270, 288, 320, 360, 384, 432, 454, 480, 512, 540, 576, 640, 681, 720, 768, 864, 908, 960, 1024, 1080, 1135, 1152, 1280, 1362, 1440, 1536, 1728, 1816, 1920, 2043, 2160, 2270, 2304, 2560, 2724, 2880, 3072, 3405, 3456, 3632, 3840, 4086, 4320, 4540, 4608, 5120, 5448, 5760, 6129, 6810, 6912, 7264, 7680, 8172, 8640, 9080, 9216, 10215, 10896, 11520, 12258, 13620, 13824, 14528, 15360, 16344, 17280, 18160, 20430, 21792, 23040, 24516, 27240, 27648, 29056, 30645, 32688, 34560, 36320, 40860, 43584, 46080, 49032, 54480, 58112, 61290, 65376, 69120, 72640, 81720, 87168, 98064, 108960, 116224, 122580, 130752, 138240, 145280, 163440, 174336, 196128, 217920, 232448, 245160, 261504, 290560, 326880, 348672, 392256, 435840, 490320, 523008, 581120, 653760, 697344, 784512, 871680, 980640, 1046016, 1162240, 1307520, 1569024, 1743360, 1961280, 2092032, 2615040, 3138048, 3486720, 3922560, 5230080, 6276096, 7845120, 10460160, 15690240, 31380480]

約数ペア:

[(1, 31380480), (2, 15690240), (3, 10460160), (4, 7845120), (5, 6276096), (6, 5230080), (8, 3922560), (9, 3486720), (10, 3138048), (12, 2615040), (15, 2092032), (16, 1961280), (18, 1743360), (20, 1569024), (24, 1307520), (27, 1162240), (30, 1046016), (32, 980640), (36, 871680), (40, 784512), (45, 697344), (48, 653760), (54, 581120), (60, 523008), (64, 490320), (72, 435840), (80, 392256), (90, 348672), (96, 326880), (108, 290560), (120, 261504), (128, 245160), (135, 232448), (144, 217920), (160, 196128), (180, 174336), (192, 163440), (216, 145280), (227, 138240), (240, 130752), (256, 122580), (270, 116224), (288, 108960), (320, 98064), (360, 87168), (384, 81720), (432, 72640), (454, 69120), (480, 65376), (512, 61290), (540, 58112), (576, 54480), (640, 49032), (681, 46080), (720, 43584), (768, 40860), (864, 36320), (908, 34560), (960, 32688), (1024, 30645), (1080, 29056), (1135, 27648), (1152, 27240), (1280, 24516), (1362, 23040), (1440, 21792), (1536, 20430), (1728, 18160), (1816, 17280), (1920, 16344), (2043, 15360), (2160, 14528), (2270, 13824), (2304, 13620), (2560, 12258), (2724, 11520), (2880, 10896), (3072, 10215), (3405, 9216), (3456, 9080), (3632, 8640), (3840, 8172), (4086, 7680), (4320, 7264), (4540, 6912), (4608, 6810), (5120, 6129), (5448, 5760)]