261533440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{101}}^1$

素因数の和:163

約数の個数: 216

約数和(自身を含む): 768069792

約数和(自身を除く): 506536352

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 56, 64, 68, 70, 80, 85, 101, 112, 119, 128, 136, 140, 160, 170, 202, 224, 238, 256, 272, 280, 289, 320, 340, 404, 448, 476, 505, 544, 560, 578, 595, 640, 680, 707, 808, 896, 952, 1010, 1088, 1120, 1156, 1190, 1280, 1360, 1414, 1445, 1616, 1717, 1792, 1904, 2020, 2023, 2176, 2240, 2312, 2380, 2720, 2828, 2890, 3232, 3434, 3535, 3808, 4040, 4046, 4352, 4480, 4624, 4760, 5440, 5656, 5780, 6464, 6868, 7070, 7616, 8080, 8092, 8585, 8960, 9248, 9520, 10115, 10880, 11312, 11560, 12019, 12928, 13736, 14140, 15232, 16160, 16184, 17170, 18496, 19040, 20230, 21760, 22624, 23120, 24038, 25856, 27472, 28280, 29189, 30464, 32320, 32368, 34340, 36992, 38080, 40460, 45248, 46240, 48076, 54944, 56560, 58378, 60095, 64640, 64736, 68680, 73984, 76160, 80920, 90496, 92480, 96152, 109888, 113120, 116756, 120190, 129280, 129472, 137360, 145945, 152320, 161840, 180992, 184960, 192304, 204323, 219776, 226240, 233512, 240380, 258944, 274720, 291890, 323680, 369920, 384608, 408646, 439552, 452480, 467024, 480760, 517888, 549440, 583780, 647360, 769216, 817292, 904960, 934048, 961520, 1021615, 1098880, 1167560, 1294720, 1538432, 1634584, 1868096, 1923040, 2043230, 2197760, 2335120, 2589440, 3076864, 3269168, 3736192, 3846080, 4086460, 4670240, 6538336, 7472384, 7692160, 8172920, 9340480, 13076672, 15384320, 16345840, 18680960, 26153344, 32691680, 37361920, 52306688, 65383360, 130766720, 261533440]

約数ペア:

[(1, 261533440), (2, 130766720), (4, 65383360), (5, 52306688), (7, 37361920), (8, 32691680), (10, 26153344), (14, 18680960), (16, 16345840), (17, 15384320), (20, 13076672), (28, 9340480), (32, 8172920), (34, 7692160), (35, 7472384), (40, 6538336), (56, 4670240), (64, 4086460), (68, 3846080), (70, 3736192), (80, 3269168), (85, 3076864), (101, 2589440), (112, 2335120), (119, 2197760), (128, 2043230), (136, 1923040), (140, 1868096), (160, 1634584), (170, 1538432), (202, 1294720), (224, 1167560), (238, 1098880), (256, 1021615), (272, 961520), (280, 934048), (289, 904960), (320, 817292), (340, 769216), (404, 647360), (448, 583780), (476, 549440), (505, 517888), (544, 480760), (560, 467024), (578, 452480), (595, 439552), (640, 408646), (680, 384608), (707, 369920), (808, 323680), (896, 291890), (952, 274720), (1010, 258944), (1088, 240380), (1120, 233512), (1156, 226240), (1190, 219776), (1280, 204323), (1360, 192304), (1414, 184960), (1445, 180992), (1616, 161840), (1717, 152320), (1792, 145945), (1904, 137360), (2020, 129472), (2023, 129280), (2176, 120190), (2240, 116756), (2312, 113120), (2380, 109888), (2720, 96152), (2828, 92480), (2890, 90496), (3232, 80920), (3434, 76160), (3535, 73984), (3808, 68680), (4040, 64736), (4046, 64640), (4352, 60095), (4480, 58378), (4624, 56560), (4760, 54944), (5440, 48076), (5656, 46240), (5780, 45248), (6464, 40460), (6868, 38080), (7070, 36992), (7616, 34340), (8080, 32368), (8092, 32320), (8585, 30464), (8960, 29189), (9248, 28280), (9520, 27472), (10115, 25856), (10880, 24038), (11312, 23120), (11560, 22624), (12019, 21760), (12928, 20230), (13736, 19040), (14140, 18496), (15232, 17170), (16160, 16184)]