281873280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:549

約数の個数: 256

約数和(自身を含む): 1011709440

約数和(自身を除く): 729836160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 32, 39, 40, 46, 48, 52, 60, 64, 65, 69, 78, 80, 92, 96, 104, 115, 120, 128, 130, 138, 156, 160, 184, 192, 195, 208, 230, 240, 260, 276, 299, 312, 320, 345, 368, 384, 390, 416, 460, 480, 491, 520, 552, 598, 624, 640, 690, 736, 780, 832, 897, 920, 960, 982, 1040, 1104, 1196, 1248, 1380, 1472, 1473, 1495, 1560, 1664, 1794, 1840, 1920, 1964, 2080, 2208, 2392, 2455, 2496, 2760, 2944, 2946, 2990, 3120, 3588, 3680, 3928, 4160, 4416, 4485, 4784, 4910, 4992, 5520, 5892, 5980, 6240, 6383, 7176, 7360, 7365, 7856, 8320, 8832, 8970, 9568, 9820, 11040, 11293, 11784, 11960, 12480, 12766, 14352, 14720, 14730, 15712, 17940, 19136, 19149, 19640, 22080, 22586, 23568, 23920, 24960, 25532, 28704, 29460, 31424, 31915, 33879, 35880, 38272, 38298, 39280, 44160, 45172, 47136, 47840, 51064, 56465, 57408, 58920, 62848, 63830, 67758, 71760, 76596, 78560, 90344, 94272, 95680, 95745, 102128, 112930, 114816, 117840, 127660, 135516, 143520, 146809, 153192, 157120, 169395, 180688, 188544, 191360, 191490, 204256, 225860, 235680, 255320, 271032, 287040, 293618, 306384, 314240, 338790, 361376, 382980, 408512, 440427, 451720, 471360, 510640, 542064, 574080, 587236, 612768, 677580, 722752, 734045, 765960, 817024, 880854, 903440, 942720, 1021280, 1084128, 1174472, 1225536, 1355160, 1445504, 1468090, 1531920, 1761708, 1806880, 2042560, 2168256, 2202135, 2348944, 2451072, 2710320, 2936180, 3063840, 3523416, 3613760, 4085120, 4336512, 4404270, 4697888, 5420640, 5872360, 6127680, 7046832, 7227520, 8808540, 9395776, 10841280, 11744720, 12255360, 14093664, 17617080, 18791552, 21682560, 23489440, 28187328, 35234160, 46978880, 56374656, 70468320, 93957760, 140936640, 281873280]

約数ペア:

[(1, 281873280), (2, 140936640), (3, 93957760), (4, 70468320), (5, 56374656), (6, 46978880), (8, 35234160), (10, 28187328), (12, 23489440), (13, 21682560), (15, 18791552), (16, 17617080), (20, 14093664), (23, 12255360), (24, 11744720), (26, 10841280), (30, 9395776), (32, 8808540), (39, 7227520), (40, 7046832), (46, 6127680), (48, 5872360), (52, 5420640), (60, 4697888), (64, 4404270), (65, 4336512), (69, 4085120), (78, 3613760), (80, 3523416), (92, 3063840), (96, 2936180), (104, 2710320), (115, 2451072), (120, 2348944), (128, 2202135), (130, 2168256), (138, 2042560), (156, 1806880), (160, 1761708), (184, 1531920), (192, 1468090), (195, 1445504), (208, 1355160), (230, 1225536), (240, 1174472), (260, 1084128), (276, 1021280), (299, 942720), (312, 903440), (320, 880854), (345, 817024), (368, 765960), (384, 734045), (390, 722752), (416, 677580), (460, 612768), (480, 587236), (491, 574080), (520, 542064), (552, 510640), (598, 471360), (624, 451720), (640, 440427), (690, 408512), (736, 382980), (780, 361376), (832, 338790), (897, 314240), (920, 306384), (960, 293618), (982, 287040), (1040, 271032), (1104, 255320), (1196, 235680), (1248, 225860), (1380, 204256), (1472, 191490), (1473, 191360), (1495, 188544), (1560, 180688), (1664, 169395), (1794, 157120), (1840, 153192), (1920, 146809), (1964, 143520), (2080, 135516), (2208, 127660), (2392, 117840), (2455, 114816), (2496, 112930), (2760, 102128), (2944, 95745), (2946, 95680), (2990, 94272), (3120, 90344), (3588, 78560), (3680, 76596), (3928, 71760), (4160, 67758), (4416, 63830), (4485, 62848), (4784, 58920), (4910, 57408), (4992, 56465), (5520, 51064), (5892, 47840), (5980, 47136), (6240, 45172), (6383, 44160), (7176, 39280), (7360, 38298), (7365, 38272), (7856, 35880), (8320, 33879), (8832, 31915), (8970, 31424), (9568, 29460), (9820, 28704), (11040, 25532), (11293, 24960), (11784, 23920), (11960, 23568), (12480, 22586), (12766, 22080), (14352, 19640), (14720, 19149), (14730, 19136), (15712, 17940)]