257011440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8999}}^1$

素因数の和:9039

約数の個数: 160

約数和(自身を含む): 964224000

約数和(自身を除く): 707212560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 48, 51, 56, 60, 68, 70, 80, 84, 85, 102, 105, 112, 119, 120, 136, 140, 168, 170, 204, 210, 238, 240, 255, 272, 280, 336, 340, 357, 408, 420, 476, 510, 560, 595, 680, 714, 816, 840, 952, 1020, 1190, 1360, 1428, 1680, 1785, 1904, 2040, 2380, 2856, 3570, 4080, 4760, 5712, 7140, 8999, 9520, 14280, 17998, 26997, 28560, 35996, 44995, 53994, 62993, 71992, 89990, 107988, 125986, 134985, 143984, 152983, 179980, 188979, 215976, 251972, 269970, 305966, 314965, 359960, 377958, 431952, 458949, 503944, 539940, 611932, 629930, 719920, 755916, 764915, 917898, 944895, 1007888, 1070881, 1079880, 1223864, 1259860, 1511832, 1529830, 1835796, 1889790, 2141762, 2159760, 2294745, 2447728, 2519720, 3023664, 3059660, 3212643, 3671592, 3779580, 4283524, 4589490, 5039440, 5354405, 6119320, 6425286, 7343184, 7559160, 8567048, 9178980, 10708810, 12238640, 12850572, 15118320, 16063215, 17134096, 18357960, 21417620, 25701144, 32126430, 36715920, 42835240, 51402288, 64252860, 85670480, 128505720, 257011440]

約数ペア:

[(1, 257011440), (2, 128505720), (3, 85670480), (4, 64252860), (5, 51402288), (6, 42835240), (7, 36715920), (8, 32126430), (10, 25701144), (12, 21417620), (14, 18357960), (15, 17134096), (16, 16063215), (17, 15118320), (20, 12850572), (21, 12238640), (24, 10708810), (28, 9178980), (30, 8567048), (34, 7559160), (35, 7343184), (40, 6425286), (42, 6119320), (48, 5354405), (51, 5039440), (56, 4589490), (60, 4283524), (68, 3779580), (70, 3671592), (80, 3212643), (84, 3059660), (85, 3023664), (102, 2519720), (105, 2447728), (112, 2294745), (119, 2159760), (120, 2141762), (136, 1889790), (140, 1835796), (168, 1529830), (170, 1511832), (204, 1259860), (210, 1223864), (238, 1079880), (240, 1070881), (255, 1007888), (272, 944895), (280, 917898), (336, 764915), (340, 755916), (357, 719920), (408, 629930), (420, 611932), (476, 539940), (510, 503944), (560, 458949), (595, 431952), (680, 377958), (714, 359960), (816, 314965), (840, 305966), (952, 269970), (1020, 251972), (1190, 215976), (1360, 188979), (1428, 179980), (1680, 152983), (1785, 143984), (1904, 134985), (2040, 125986), (2380, 107988), (2856, 89990), (3570, 71992), (4080, 62993), (4760, 53994), (5712, 44995), (7140, 35996), (8999, 28560), (9520, 26997), (14280, 17998)]