388666880

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1$

素因数の和:117

約数の個数: 240

約数和(自身を含む): 1140489504

約数和(自身を除く): 751822624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 41, 46, 56, 64, 70, 80, 82, 92, 112, 115, 128, 140, 160, 161, 164, 184, 205, 224, 230, 256, 280, 287, 320, 322, 328, 368, 410, 448, 460, 512, 529, 560, 574, 640, 644, 656, 736, 805, 820, 896, 920, 943, 1058, 1120, 1148, 1280, 1288, 1312, 1435, 1472, 1610, 1640, 1792, 1840, 1886, 2116, 2240, 2296, 2560, 2576, 2624, 2645, 2870, 2944, 3220, 3280, 3584, 3680, 3703, 3772, 4232, 4480, 4592, 4715, 5152, 5248, 5290, 5740, 5888, 6440, 6560, 6601, 7360, 7406, 7544, 8464, 8960, 9184, 9430, 10304, 10496, 10580, 11480, 11776, 12880, 13120, 13202, 14720, 14812, 15088, 16928, 17920, 18368, 18515, 18860, 20608, 20992, 21160, 21689, 22960, 25760, 26240, 26404, 29440, 29624, 30176, 33005, 33856, 36736, 37030, 37720, 41216, 42320, 43378, 45920, 51520, 52480, 52808, 58880, 59248, 60352, 66010, 67712, 73472, 74060, 75440, 82432, 84640, 86756, 91840, 103040, 104960, 105616, 108445, 118496, 120704, 132020, 135424, 146944, 148120, 150880, 151823, 169280, 173512, 183680, 206080, 211232, 216890, 236992, 241408, 264040, 270848, 296240, 301760, 303646, 338560, 347024, 367360, 412160, 422464, 433780, 473984, 482816, 528080, 592480, 603520, 607292, 677120, 694048, 734720, 759115, 844928, 867560, 947968, 1056160, 1184960, 1207040, 1214584, 1354240, 1388096, 1518230, 1689856, 1735120, 1895936, 2112320, 2369920, 2414080, 2429168, 2776192, 3036460, 3379712, 3470240, 4224640, 4739840, 4858336, 5552384, 6072920, 6940480, 8449280, 9479680, 9716672, 11104768, 12145840, 13880960, 16898560, 19433344, 24291680, 27761920, 38866688, 48583360, 55523840, 77733376, 97166720, 194333440, 388666880]

約数ペア:

[(1, 388666880), (2, 194333440), (4, 97166720), (5, 77733376), (7, 55523840), (8, 48583360), (10, 38866688), (14, 27761920), (16, 24291680), (20, 19433344), (23, 16898560), (28, 13880960), (32, 12145840), (35, 11104768), (40, 9716672), (41, 9479680), (46, 8449280), (56, 6940480), (64, 6072920), (70, 5552384), (80, 4858336), (82, 4739840), (92, 4224640), (112, 3470240), (115, 3379712), (128, 3036460), (140, 2776192), (160, 2429168), (161, 2414080), (164, 2369920), (184, 2112320), (205, 1895936), (224, 1735120), (230, 1689856), (256, 1518230), (280, 1388096), (287, 1354240), (320, 1214584), (322, 1207040), (328, 1184960), (368, 1056160), (410, 947968), (448, 867560), (460, 844928), (512, 759115), (529, 734720), (560, 694048), (574, 677120), (640, 607292), (644, 603520), (656, 592480), (736, 528080), (805, 482816), (820, 473984), (896, 433780), (920, 422464), (943, 412160), (1058, 367360), (1120, 347024), (1148, 338560), (1280, 303646), (1288, 301760), (1312, 296240), (1435, 270848), (1472, 264040), (1610, 241408), (1640, 236992), (1792, 216890), (1840, 211232), (1886, 206080), (2116, 183680), (2240, 173512), (2296, 169280), (2560, 151823), (2576, 150880), (2624, 148120), (2645, 146944), (2870, 135424), (2944, 132020), (3220, 120704), (3280, 118496), (3584, 108445), (3680, 105616), (3703, 104960), (3772, 103040), (4232, 91840), (4480, 86756), (4592, 84640), (4715, 82432), (5152, 75440), (5248, 74060), (5290, 73472), (5740, 67712), (5888, 66010), (6440, 60352), (6560, 59248), (6601, 58880), (7360, 52808), (7406, 52480), (7544, 51520), (8464, 45920), (8960, 43378), (9184, 42320), (9430, 41216), (10304, 37720), (10496, 37030), (10580, 36736), (11480, 33856), (11776, 33005), (12880, 30176), (13120, 29624), (13202, 29440), (14720, 26404), (14812, 26240), (15088, 25760), (16928, 22960), (17920, 21689), (18368, 21160), (18515, 20992), (18860, 20608)]