28751520

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:267

約数の個数: 192

約数和(自身を含む): 106444800

約数和(自身を除く): 77693280

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, 56, 60, 70, 80, 84, 86, 96, 105, 112, 120, 129, 140, 160, 168, 172, 199, 210, 215, 224, 240, 258, 280, 301, 336, 344, 398, 420, 430, 480, 516, 560, 597, 602, 645, 672, 688, 796, 840, 860, 903, 995, 1032, 1120, 1194, 1204, 1290, 1376, 1393, 1505, 1592, 1680, 1720, 1806, 1990, 2064, 2388, 2408, 2580, 2786, 2985, 3010, 3184, 3360, 3440, 3612, 3980, 4128, 4179, 4515, 4776, 4816, 5160, 5572, 5970, 6020, 6368, 6880, 6965, 7224, 7960, 8358, 8557, 9030, 9552, 9632, 10320, 11144, 11940, 12040, 13930, 14448, 15920, 16716, 17114, 18060, 19104, 20640, 20895, 22288, 23880, 24080, 25671, 27860, 28896, 31840, 33432, 34228, 36120, 41790, 42785, 44576, 47760, 48160, 51342, 55720, 59899, 66864, 68456, 72240, 83580, 85570, 95520, 102684, 111440, 119798, 128355, 133728, 136912, 144480, 167160, 171140, 179697, 205368, 222880, 239596, 256710, 273824, 299495, 334320, 342280, 359394, 410736, 479192, 513420, 598990, 668640, 684560, 718788, 821472, 898485, 958384, 1026840, 1197980, 1369120, 1437576, 1796970, 1916768, 2053680, 2395960, 2875152, 3593940, 4107360, 4791920, 5750304, 7187880, 9583840, 14375760, 28751520]

約数ペア:

[(1, 28751520), (2, 14375760), (3, 9583840), (4, 7187880), (5, 5750304), (6, 4791920), (7, 4107360), (8, 3593940), (10, 2875152), (12, 2395960), (14, 2053680), (15, 1916768), (16, 1796970), (20, 1437576), (21, 1369120), (24, 1197980), (28, 1026840), (30, 958384), (32, 898485), (35, 821472), (40, 718788), (42, 684560), (43, 668640), (48, 598990), (56, 513420), (60, 479192), (70, 410736), (80, 359394), (84, 342280), (86, 334320), (96, 299495), (105, 273824), (112, 256710), (120, 239596), (129, 222880), (140, 205368), (160, 179697), (168, 171140), (172, 167160), (199, 144480), (210, 136912), (215, 133728), (224, 128355), (240, 119798), (258, 111440), (280, 102684), (301, 95520), (336, 85570), (344, 83580), (398, 72240), (420, 68456), (430, 66864), (480, 59899), (516, 55720), (560, 51342), (597, 48160), (602, 47760), (645, 44576), (672, 42785), (688, 41790), (796, 36120), (840, 34228), (860, 33432), (903, 31840), (995, 28896), (1032, 27860), (1120, 25671), (1194, 24080), (1204, 23880), (1290, 22288), (1376, 20895), (1393, 20640), (1505, 19104), (1592, 18060), (1680, 17114), (1720, 16716), (1806, 15920), (1990, 14448), (2064, 13930), (2388, 12040), (2408, 11940), (2580, 11144), (2786, 10320), (2985, 9632), (3010, 9552), (3184, 9030), (3360, 8557), (3440, 8358), (3612, 7960), (3980, 7224), (4128, 6965), (4179, 6880), (4515, 6368), (4776, 6020), (4816, 5970), (5160, 5572)]