391544640

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{257}}^1$

素因数の和:326

約数の個数: 252

約数和(自身を含む): 1413328644

約数和(自身を除く): 1021784004

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 64, 69, 72, 80, 90, 92, 96, 115, 120, 138, 144, 160, 180, 184, 192, 207, 230, 240, 257, 276, 288, 320, 345, 360, 368, 414, 460, 480, 514, 529, 552, 576, 690, 720, 736, 771, 828, 920, 960, 1028, 1035, 1058, 1104, 1285, 1380, 1440, 1472, 1542, 1587, 1656, 1840, 2056, 2070, 2116, 2208, 2313, 2570, 2645, 2760, 2880, 3084, 3174, 3312, 3680, 3855, 4112, 4140, 4232, 4416, 4626, 4761, 5140, 5290, 5520, 5911, 6168, 6348, 6624, 7360, 7710, 7935, 8224, 8280, 8464, 9252, 9522, 10280, 10580, 11040, 11565, 11822, 12336, 12696, 13248, 15420, 15870, 16448, 16560, 16928, 17733, 18504, 19044, 20560, 21160, 22080, 23130, 23644, 23805, 24672, 25392, 29555, 30840, 31740, 33120, 33856, 35466, 37008, 38088, 41120, 42320, 46260, 47288, 47610, 49344, 50784, 53199, 59110, 61680, 63480, 66240, 70932, 74016, 76176, 82240, 84640, 88665, 92520, 94576, 95220, 101568, 106398, 118220, 123360, 126960, 135953, 141864, 148032, 152352, 169280, 177330, 185040, 189152, 190440, 212796, 236440, 246720, 253920, 265995, 271906, 283728, 304704, 354660, 370080, 378304, 380880, 407859, 425592, 472880, 507840, 531990, 543812, 567456, 679765, 709320, 740160, 761760, 815718, 851184, 945760, 1063980, 1087624, 1134912, 1223577, 1359530, 1418640, 1523520, 1631436, 1702368, 1891520, 2039295, 2127960, 2175248, 2447154, 2719060, 2837280, 3262872, 3404736, 4078590, 4255920, 4350496, 4894308, 5438120, 5674560, 6117885, 6525744, 8157180, 8511840, 8700992, 9788616, 10876240, 12235770, 13051488, 16314360, 17023680, 19577232, 21752480, 24471540, 26102976, 32628720, 39154464, 43504960, 48943080, 65257440, 78308928, 97886160, 130514880, 195772320, 391544640]

約数ペア:

[(1, 391544640), (2, 195772320), (3, 130514880), (4, 97886160), (5, 78308928), (6, 65257440), (8, 48943080), (9, 43504960), (10, 39154464), (12, 32628720), (15, 26102976), (16, 24471540), (18, 21752480), (20, 19577232), (23, 17023680), (24, 16314360), (30, 13051488), (32, 12235770), (36, 10876240), (40, 9788616), (45, 8700992), (46, 8511840), (48, 8157180), (60, 6525744), (64, 6117885), (69, 5674560), (72, 5438120), (80, 4894308), (90, 4350496), (92, 4255920), (96, 4078590), (115, 3404736), (120, 3262872), (138, 2837280), (144, 2719060), (160, 2447154), (180, 2175248), (184, 2127960), (192, 2039295), (207, 1891520), (230, 1702368), (240, 1631436), (257, 1523520), (276, 1418640), (288, 1359530), (320, 1223577), (345, 1134912), (360, 1087624), (368, 1063980), (414, 945760), (460, 851184), (480, 815718), (514, 761760), (529, 740160), (552, 709320), (576, 679765), (690, 567456), (720, 543812), (736, 531990), (771, 507840), (828, 472880), (920, 425592), (960, 407859), (1028, 380880), (1035, 378304), (1058, 370080), (1104, 354660), (1285, 304704), (1380, 283728), (1440, 271906), (1472, 265995), (1542, 253920), (1587, 246720), (1656, 236440), (1840, 212796), (2056, 190440), (2070, 189152), (2116, 185040), (2208, 177330), (2313, 169280), (2570, 152352), (2645, 148032), (2760, 141864), (2880, 135953), (3084, 126960), (3174, 123360), (3312, 118220), (3680, 106398), (3855, 101568), (4112, 95220), (4140, 94576), (4232, 92520), (4416, 88665), (4626, 84640), (4761, 82240), (5140, 76176), (5290, 74016), (5520, 70932), (5911, 66240), (6168, 63480), (6348, 61680), (6624, 59110), (7360, 53199), (7710, 50784), (7935, 49344), (8224, 47610), (8280, 47288), (8464, 46260), (9252, 42320), (9522, 41120), (10280, 38088), (10580, 37008), (11040, 35466), (11565, 33856), (11822, 33120), (12336, 31740), (12696, 30840), (13248, 29555), (15420, 25392), (15870, 24672), (16448, 23805), (16560, 23644), (16928, 23130), (17733, 22080), (18504, 21160), (19044, 20560)]