28318080

素因数分解:

$2^7\times 3^1\times 5^1\times 7^3\times {\mathrm{43}}^1$

素因数の和:86

約数の個数: 256

約数和(自身を含む): 107712000

約数和(自身を除く): 79393920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 43, 48, 49, 56, 60, 64, 70, 80, 84, 86, 96, 98, 105, 112, 120, 128, 129, 140, 147, 160, 168, 172, 192, 196, 210, 215, 224, 240, 245, 258, 280, 294, 301, 320, 336, 343, 344, 384, 392, 420, 430, 448, 480, 490, 516, 560, 588, 602, 640, 645, 672, 686, 688, 735, 784, 840, 860, 896, 903, 960, 980, 1029, 1032, 1120, 1176, 1204, 1290, 1344, 1372, 1376, 1470, 1505, 1568, 1680, 1715, 1720, 1806, 1920, 1960, 2058, 2064, 2107, 2240, 2352, 2408, 2580, 2688, 2744, 2752, 2940, 3010, 3136, 3360, 3430, 3440, 3612, 3920, 4116, 4128, 4214, 4480, 4515, 4704, 4816, 5145, 5160, 5488, 5504, 5880, 6020, 6272, 6321, 6720, 6860, 6880, 7224, 7840, 8232, 8256, 8428, 9030, 9408, 9632, 10290, 10320, 10535, 10976, 11760, 12040, 12642, 13440, 13720, 13760, 14448, 14749, 15680, 16464, 16512, 16856, 18060, 18816, 19264, 20580, 20640, 21070, 21952, 23520, 24080, 25284, 27440, 27520, 28896, 29498, 31360, 31605, 32928, 33712, 36120, 38528, 41160, 41280, 42140, 43904, 44247, 47040, 48160, 50568, 54880, 57792, 58996, 63210, 65856, 67424, 72240, 73745, 82320, 82560, 84280, 88494, 94080, 96320, 101136, 109760, 115584, 117992, 126420, 131712, 134848, 144480, 147490, 164640, 168560, 176988, 192640, 202272, 219520, 221235, 235984, 252840, 269696, 288960, 294980, 329280, 337120, 353976, 404544, 442470, 471968, 505680, 577920, 589960, 658560, 674240, 707952, 809088, 884940, 943936, 1011360, 1179920, 1348480, 1415904, 1769880, 1887872, 2022720, 2359840, 2831808, 3539760, 4045440, 4719680, 5663616, 7079520, 9439360, 14159040, 28318080]

約数ペア:

[(1, 28318080), (2, 14159040), (3, 9439360), (4, 7079520), (5, 5663616), (6, 4719680), (7, 4045440), (8, 3539760), (10, 2831808), (12, 2359840), (14, 2022720), (15, 1887872), (16, 1769880), (20, 1415904), (21, 1348480), (24, 1179920), (28, 1011360), (30, 943936), (32, 884940), (35, 809088), (40, 707952), (42, 674240), (43, 658560), (48, 589960), (49, 577920), (56, 505680), (60, 471968), (64, 442470), (70, 404544), (80, 353976), (84, 337120), (86, 329280), (96, 294980), (98, 288960), (105, 269696), (112, 252840), (120, 235984), (128, 221235), (129, 219520), (140, 202272), (147, 192640), (160, 176988), (168, 168560), (172, 164640), (192, 147490), (196, 144480), (210, 134848), (215, 131712), (224, 126420), (240, 117992), (245, 115584), (258, 109760), (280, 101136), (294, 96320), (301, 94080), (320, 88494), (336, 84280), (343, 82560), (344, 82320), (384, 73745), (392, 72240), (420, 67424), (430, 65856), (448, 63210), (480, 58996), (490, 57792), (516, 54880), (560, 50568), (588, 48160), (602, 47040), (640, 44247), (645, 43904), (672, 42140), (686, 41280), (688, 41160), (735, 38528), (784, 36120), (840, 33712), (860, 32928), (896, 31605), (903, 31360), (960, 29498), (980, 28896), (1029, 27520), (1032, 27440), (1120, 25284), (1176, 24080), (1204, 23520), (1290, 21952), (1344, 21070), (1372, 20640), (1376, 20580), (1470, 19264), (1505, 18816), (1568, 18060), (1680, 16856), (1715, 16512), (1720, 16464), (1806, 15680), (1920, 14749), (1960, 14448), (2058, 13760), (2064, 13720), (2107, 13440), (2240, 12642), (2352, 12040), (2408, 11760), (2580, 10976), (2688, 10535), (2744, 10320), (2752, 10290), (2940, 9632), (3010, 9408), (3136, 9030), (3360, 8428), (3430, 8256), (3440, 8232), (3612, 7840), (3920, 7224), (4116, 6880), (4128, 6860), (4214, 6720), (4480, 6321), (4515, 6272), (4704, 6020), (4816, 5880), (5145, 5504), (5160, 5488)]