51611280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1045

約数の個数: 160

約数和(自身を含む): 188940288

約数和(自身を除く): 137329008

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 210, 217, 240, 248, 280, 310, 336, 372, 420, 434, 465, 496, 560, 620, 651, 744, 840, 868, 930, 991, 1085, 1240, 1302, 1488, 1680, 1736, 1860, 1982, 2170, 2480, 2604, 2973, 3255, 3472, 3720, 3964, 4340, 4955, 5208, 5946, 6510, 6937, 7440, 7928, 8680, 9910, 10416, 11892, 13020, 13874, 14865, 15856, 17360, 19820, 20811, 23784, 26040, 27748, 29730, 30721, 34685, 39640, 41622, 47568, 52080, 55496, 59460, 61442, 69370, 79280, 83244, 92163, 104055, 110992, 118920, 122884, 138740, 153605, 166488, 184326, 208110, 215047, 237840, 245768, 277480, 307210, 332976, 368652, 416220, 430094, 460815, 491536, 554960, 614420, 645141, 737304, 832440, 860188, 921630, 1075235, 1228840, 1290282, 1474608, 1664880, 1720376, 1843260, 2150470, 2457680, 2580564, 3225705, 3440752, 3686520, 4300940, 5161128, 6451410, 7373040, 8601880, 10322256, 12902820, 17203760, 25805640, 51611280]

約数ペア:

[(1, 51611280), (2, 25805640), (3, 17203760), (4, 12902820), (5, 10322256), (6, 8601880), (7, 7373040), (8, 6451410), (10, 5161128), (12, 4300940), (14, 3686520), (15, 3440752), (16, 3225705), (20, 2580564), (21, 2457680), (24, 2150470), (28, 1843260), (30, 1720376), (31, 1664880), (35, 1474608), (40, 1290282), (42, 1228840), (48, 1075235), (56, 921630), (60, 860188), (62, 832440), (70, 737304), (80, 645141), (84, 614420), (93, 554960), (105, 491536), (112, 460815), (120, 430094), (124, 416220), (140, 368652), (155, 332976), (168, 307210), (186, 277480), (210, 245768), (217, 237840), (240, 215047), (248, 208110), (280, 184326), (310, 166488), (336, 153605), (372, 138740), (420, 122884), (434, 118920), (465, 110992), (496, 104055), (560, 92163), (620, 83244), (651, 79280), (744, 69370), (840, 61442), (868, 59460), (930, 55496), (991, 52080), (1085, 47568), (1240, 41622), (1302, 39640), (1488, 34685), (1680, 30721), (1736, 29730), (1860, 27748), (1982, 26040), (2170, 23784), (2480, 20811), (2604, 19820), (2973, 17360), (3255, 15856), (3472, 14865), (3720, 13874), (3964, 13020), (4340, 11892), (4955, 10416), (5208, 9910), (5946, 8680), (6510, 7928), (6937, 7440)]