20766720

素因数分解:

$2^{13}\times 3^1\times 5^1\times {\mathrm{13}}^2$

素因数の和:60

約数の個数: 168

約数和(自身を含む): 71954136

約数和(自身を除く): 51187416

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 169, 192, 195, 208, 240, 256, 260, 312, 320, 338, 384, 390, 416, 480, 507, 512, 520, 624, 640, 676, 768, 780, 832, 845, 960, 1014, 1024, 1040, 1248, 1280, 1352, 1536, 1560, 1664, 1690, 1920, 2028, 2048, 2080, 2496, 2535, 2560, 2704, 3072, 3120, 3328, 3380, 3840, 4056, 4096, 4160, 4992, 5070, 5120, 5408, 6144, 6240, 6656, 6760, 7680, 8112, 8192, 8320, 9984, 10140, 10240, 10816, 12288, 12480, 13312, 13520, 15360, 16224, 16640, 19968, 20280, 20480, 21632, 24576, 24960, 26624, 27040, 30720, 32448, 33280, 39936, 40560, 40960, 43264, 49920, 53248, 54080, 61440, 64896, 66560, 79872, 81120, 86528, 99840, 106496, 108160, 122880, 129792, 133120, 159744, 162240, 173056, 199680, 216320, 259584, 266240, 319488, 324480, 346112, 399360, 432640, 519168, 532480, 648960, 692224, 798720, 865280, 1038336, 1297920, 1384448, 1597440, 1730560, 2076672, 2595840, 3461120, 4153344, 5191680, 6922240, 10383360, 20766720]

約数ペア:

[(1, 20766720), (2, 10383360), (3, 6922240), (4, 5191680), (5, 4153344), (6, 3461120), (8, 2595840), (10, 2076672), (12, 1730560), (13, 1597440), (15, 1384448), (16, 1297920), (20, 1038336), (24, 865280), (26, 798720), (30, 692224), (32, 648960), (39, 532480), (40, 519168), (48, 432640), (52, 399360), (60, 346112), (64, 324480), (65, 319488), (78, 266240), (80, 259584), (96, 216320), (104, 199680), (120, 173056), (128, 162240), (130, 159744), (156, 133120), (160, 129792), (169, 122880), (192, 108160), (195, 106496), (208, 99840), (240, 86528), (256, 81120), (260, 79872), (312, 66560), (320, 64896), (338, 61440), (384, 54080), (390, 53248), (416, 49920), (480, 43264), (507, 40960), (512, 40560), (520, 39936), (624, 33280), (640, 32448), (676, 30720), (768, 27040), (780, 26624), (832, 24960), (845, 24576), (960, 21632), (1014, 20480), (1024, 20280), (1040, 19968), (1248, 16640), (1280, 16224), (1352, 15360), (1536, 13520), (1560, 13312), (1664, 12480), (1690, 12288), (1920, 10816), (2028, 10240), (2048, 10140), (2080, 9984), (2496, 8320), (2535, 8192), (2560, 8112), (2704, 7680), (3072, 6760), (3120, 6656), (3328, 6240), (3380, 6144), (3840, 5408), (4056, 5120), (4096, 5070), (4160, 4992)]