661513216

素因数分解:

$2^{10}\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:300

約数の個数: 176

約数和(自身を含む): 1687383040

約数和(自身を除く): 1025869824

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 32, 52, 56, 62, 64, 91, 104, 112, 124, 128, 182, 208, 217, 224, 229, 248, 256, 364, 403, 416, 434, 448, 458, 496, 512, 728, 806, 832, 868, 896, 916, 992, 1024, 1456, 1603, 1612, 1664, 1736, 1792, 1832, 1984, 2821, 2912, 2977, 3206, 3224, 3328, 3472, 3584, 3664, 3968, 5642, 5824, 5954, 6412, 6448, 6656, 6944, 7099, 7168, 7328, 7936, 11284, 11648, 11908, 12824, 12896, 13312, 13888, 14198, 14656, 15872, 20839, 22568, 23296, 23816, 25648, 25792, 27776, 28396, 29312, 31744, 41678, 45136, 46592, 47632, 49693, 51296, 51584, 55552, 56792, 58624, 83356, 90272, 92287, 93184, 95264, 99386, 102592, 103168, 111104, 113584, 117248, 166712, 180544, 184574, 190528, 198772, 205184, 206336, 222208, 227168, 234496, 333424, 361088, 369148, 381056, 397544, 410368, 412672, 454336, 646009, 666848, 722176, 738296, 762112, 795088, 820736, 908672, 1292018, 1333696, 1444352, 1476592, 1524224, 1590176, 1641472, 1817344, 2584036, 2667392, 2888704, 2953184, 3048448, 3180352, 3634688, 5168072, 5334784, 5906368, 6360704, 7269376, 10336144, 10669568, 11812736, 12721408, 20672288, 21339136, 23625472, 25442816, 41344576, 47250944, 50885632, 82689152, 94501888, 165378304, 330756608, 661513216]

約数ペア:

[(1, 661513216), (2, 330756608), (4, 165378304), (7, 94501888), (8, 82689152), (13, 50885632), (14, 47250944), (16, 41344576), (26, 25442816), (28, 23625472), (31, 21339136), (32, 20672288), (52, 12721408), (56, 11812736), (62, 10669568), (64, 10336144), (91, 7269376), (104, 6360704), (112, 5906368), (124, 5334784), (128, 5168072), (182, 3634688), (208, 3180352), (217, 3048448), (224, 2953184), (229, 2888704), (248, 2667392), (256, 2584036), (364, 1817344), (403, 1641472), (416, 1590176), (434, 1524224), (448, 1476592), (458, 1444352), (496, 1333696), (512, 1292018), (728, 908672), (806, 820736), (832, 795088), (868, 762112), (896, 738296), (916, 722176), (992, 666848), (1024, 646009), (1456, 454336), (1603, 412672), (1612, 410368), (1664, 397544), (1736, 381056), (1792, 369148), (1832, 361088), (1984, 333424), (2821, 234496), (2912, 227168), (2977, 222208), (3206, 206336), (3224, 205184), (3328, 198772), (3472, 190528), (3584, 184574), (3664, 180544), (3968, 166712), (5642, 117248), (5824, 113584), (5954, 111104), (6412, 103168), (6448, 102592), (6656, 99386), (6944, 95264), (7099, 93184), (7168, 92287), (7328, 90272), (7936, 83356), (11284, 58624), (11648, 56792), (11908, 55552), (12824, 51584), (12896, 51296), (13312, 49693), (13888, 47632), (14198, 46592), (14656, 45136), (15872, 41678), (20839, 31744), (22568, 29312), (23296, 28396), (23816, 27776), (25648, 25792)]