25478240

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:97

約数の個数: 144

約数和(自身を含む): 69627600

約数和(自身を除く): 44149360

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 29, 32, 34, 38, 40, 58, 68, 76, 80, 85, 95, 116, 136, 145, 152, 160, 170, 190, 232, 272, 289, 290, 304, 323, 340, 380, 464, 493, 544, 551, 578, 580, 608, 646, 680, 760, 928, 986, 1102, 1156, 1160, 1292, 1360, 1445, 1520, 1615, 1972, 2204, 2312, 2320, 2465, 2584, 2720, 2755, 2890, 3040, 3230, 3944, 4408, 4624, 4640, 4930, 5168, 5491, 5510, 5780, 6460, 7888, 8381, 8816, 9248, 9367, 9860, 10336, 10982, 11020, 11560, 12920, 15776, 16762, 17632, 18734, 19720, 21964, 22040, 23120, 25840, 27455, 33524, 37468, 39440, 41905, 43928, 44080, 46240, 46835, 51680, 54910, 67048, 74936, 78880, 83810, 87856, 88160, 93670, 109820, 134096, 149872, 159239, 167620, 175712, 187340, 219640, 268192, 299744, 318478, 335240, 374680, 439280, 636956, 670480, 749360, 796195, 878560, 1273912, 1340960, 1498720, 1592390, 2547824, 3184780, 5095648, 6369560, 12739120, 25478240]

約数ペア:

[(1, 25478240), (2, 12739120), (4, 6369560), (5, 5095648), (8, 3184780), (10, 2547824), (16, 1592390), (17, 1498720), (19, 1340960), (20, 1273912), (29, 878560), (32, 796195), (34, 749360), (38, 670480), (40, 636956), (58, 439280), (68, 374680), (76, 335240), (80, 318478), (85, 299744), (95, 268192), (116, 219640), (136, 187340), (145, 175712), (152, 167620), (160, 159239), (170, 149872), (190, 134096), (232, 109820), (272, 93670), (289, 88160), (290, 87856), (304, 83810), (323, 78880), (340, 74936), (380, 67048), (464, 54910), (493, 51680), (544, 46835), (551, 46240), (578, 44080), (580, 43928), (608, 41905), (646, 39440), (680, 37468), (760, 33524), (928, 27455), (986, 25840), (1102, 23120), (1156, 22040), (1160, 21964), (1292, 19720), (1360, 18734), (1445, 17632), (1520, 16762), (1615, 15776), (1972, 12920), (2204, 11560), (2312, 11020), (2320, 10982), (2465, 10336), (2584, 9860), (2720, 9367), (2755, 9248), (2890, 8816), (3040, 8381), (3230, 7888), (3944, 6460), (4408, 5780), (4624, 5510), (4640, 5491), (4930, 5168)]