281891680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:429

約数の個数: 192

約数和(自身を含む): 822140928

約数和(自身を除く): 540249248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 32, 35, 40, 46, 56, 62, 70, 80, 92, 112, 115, 124, 140, 155, 160, 161, 184, 217, 224, 230, 248, 280, 310, 322, 353, 368, 434, 460, 496, 560, 620, 644, 706, 713, 736, 805, 868, 920, 992, 1085, 1120, 1240, 1288, 1412, 1426, 1610, 1736, 1765, 1840, 2170, 2471, 2480, 2576, 2824, 2852, 3220, 3472, 3530, 3565, 3680, 4340, 4942, 4960, 4991, 5152, 5648, 5704, 6440, 6944, 7060, 7130, 8119, 8680, 9884, 9982, 10943, 11296, 11408, 12355, 12880, 14120, 14260, 16238, 17360, 19768, 19964, 21886, 22816, 24710, 24955, 25760, 28240, 28520, 32476, 34720, 39536, 39928, 40595, 43772, 49420, 49910, 54715, 56480, 56833, 57040, 64952, 76601, 79072, 79856, 81190, 87544, 98840, 99820, 109430, 113666, 114080, 129904, 153202, 159712, 162380, 175088, 197680, 199640, 218860, 227332, 251689, 259808, 284165, 306404, 324760, 350176, 383005, 395360, 399280, 437720, 454664, 503378, 568330, 612808, 649520, 766010, 798560, 875440, 909328, 1006756, 1136660, 1225616, 1258445, 1299040, 1532020, 1750880, 1761823, 1818656, 2013512, 2273320, 2451232, 2516890, 3064040, 3523646, 4027024, 4546640, 5033780, 6128080, 7047292, 8054048, 8809115, 9093280, 10067560, 12256160, 14094584, 17618230, 20135120, 28189168, 35236460, 40270240, 56378336, 70472920, 140945840, 281891680]

約数ペア:

[(1, 281891680), (2, 140945840), (4, 70472920), (5, 56378336), (7, 40270240), (8, 35236460), (10, 28189168), (14, 20135120), (16, 17618230), (20, 14094584), (23, 12256160), (28, 10067560), (31, 9093280), (32, 8809115), (35, 8054048), (40, 7047292), (46, 6128080), (56, 5033780), (62, 4546640), (70, 4027024), (80, 3523646), (92, 3064040), (112, 2516890), (115, 2451232), (124, 2273320), (140, 2013512), (155, 1818656), (160, 1761823), (161, 1750880), (184, 1532020), (217, 1299040), (224, 1258445), (230, 1225616), (248, 1136660), (280, 1006756), (310, 909328), (322, 875440), (353, 798560), (368, 766010), (434, 649520), (460, 612808), (496, 568330), (560, 503378), (620, 454664), (644, 437720), (706, 399280), (713, 395360), (736, 383005), (805, 350176), (868, 324760), (920, 306404), (992, 284165), (1085, 259808), (1120, 251689), (1240, 227332), (1288, 218860), (1412, 199640), (1426, 197680), (1610, 175088), (1736, 162380), (1765, 159712), (1840, 153202), (2170, 129904), (2471, 114080), (2480, 113666), (2576, 109430), (2824, 99820), (2852, 98840), (3220, 87544), (3472, 81190), (3530, 79856), (3565, 79072), (3680, 76601), (4340, 64952), (4942, 57040), (4960, 56833), (4991, 56480), (5152, 54715), (5648, 49910), (5704, 49420), (6440, 43772), (6944, 40595), (7060, 39928), (7130, 39536), (8119, 34720), (8680, 32476), (9884, 28520), (9982, 28240), (10943, 25760), (11296, 24955), (11408, 24710), (12355, 22816), (12880, 21886), (14120, 19964), (14260, 19768), (16238, 17360)]