281389920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1009}}^1$

素因数の和:1117

約数の個数: 192

約数和(自身を含む): 1026224640

約数和(自身を除く): 744834720

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, 48, 56, 60, 70, 80, 83, 84, 96, 105, 112, 120, 140, 160, 166, 168, 210, 224, 240, 249, 280, 332, 336, 415, 420, 480, 498, 560, 581, 664, 672, 830, 840, 996, 1009, 1120, 1162, 1245, 1328, 1660, 1680, 1743, 1992, 2018, 2324, 2490, 2656, 2905, 3027, 3320, 3360, 3486, 3984, 4036, 4648, 4980, 5045, 5810, 6054, 6640, 6972, 7063, 7968, 8072, 8715, 9296, 9960, 10090, 11620, 12108, 13280, 13944, 14126, 15135, 16144, 17430, 18592, 19920, 20180, 21189, 23240, 24216, 27888, 28252, 30270, 32288, 34860, 35315, 39840, 40360, 42378, 46480, 48432, 55776, 56504, 60540, 69720, 70630, 80720, 83747, 84756, 92960, 96864, 105945, 113008, 121080, 139440, 141260, 161440, 167494, 169512, 211890, 226016, 242160, 251241, 278880, 282520, 334988, 339024, 418735, 423780, 484320, 502482, 565040, 586229, 669976, 678048, 837470, 847560, 1004964, 1130080, 1172458, 1256205, 1339952, 1674940, 1695120, 1758687, 2009928, 2344916, 2512410, 2679904, 2931145, 3349880, 3390240, 3517374, 4019856, 4689832, 5024820, 5862290, 6699760, 7034748, 8039712, 8793435, 9379664, 10049640, 11724580, 13399520, 14069496, 17586870, 18759328, 20099280, 23449160, 28138992, 35173740, 40198560, 46898320, 56277984, 70347480, 93796640, 140694960, 281389920]

約数ペア:

[(1, 281389920), (2, 140694960), (3, 93796640), (4, 70347480), (5, 56277984), (6, 46898320), (7, 40198560), (8, 35173740), (10, 28138992), (12, 23449160), (14, 20099280), (15, 18759328), (16, 17586870), (20, 14069496), (21, 13399520), (24, 11724580), (28, 10049640), (30, 9379664), (32, 8793435), (35, 8039712), (40, 7034748), (42, 6699760), (48, 5862290), (56, 5024820), (60, 4689832), (70, 4019856), (80, 3517374), (83, 3390240), (84, 3349880), (96, 2931145), (105, 2679904), (112, 2512410), (120, 2344916), (140, 2009928), (160, 1758687), (166, 1695120), (168, 1674940), (210, 1339952), (224, 1256205), (240, 1172458), (249, 1130080), (280, 1004964), (332, 847560), (336, 837470), (415, 678048), (420, 669976), (480, 586229), (498, 565040), (560, 502482), (581, 484320), (664, 423780), (672, 418735), (830, 339024), (840, 334988), (996, 282520), (1009, 278880), (1120, 251241), (1162, 242160), (1245, 226016), (1328, 211890), (1660, 169512), (1680, 167494), (1743, 161440), (1992, 141260), (2018, 139440), (2324, 121080), (2490, 113008), (2656, 105945), (2905, 96864), (3027, 92960), (3320, 84756), (3360, 83747), (3486, 80720), (3984, 70630), (4036, 69720), (4648, 60540), (4980, 56504), (5045, 55776), (5810, 48432), (6054, 46480), (6640, 42378), (6972, 40360), (7063, 39840), (7968, 35315), (8072, 34860), (8715, 32288), (9296, 30270), (9960, 28252), (10090, 27888), (11620, 24216), (12108, 23240), (13280, 21189), (13944, 20180), (14126, 19920), (15135, 18592), (16144, 17430)]