20520864

素因数分解:

$2^5\times 3^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:74

約数の個数: 288

約数和(自身を含む): 77051520

約数和(自身を除く): 56530656

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 27, 28, 29, 32, 36, 39, 42, 48, 52, 54, 56, 58, 63, 72, 78, 81, 84, 87, 91, 96, 104, 108, 112, 116, 117, 126, 144, 156, 162, 168, 174, 182, 189, 203, 208, 216, 224, 232, 234, 243, 252, 261, 273, 288, 312, 324, 336, 348, 351, 364, 377, 378, 406, 416, 432, 464, 468, 486, 504, 522, 546, 567, 609, 624, 648, 672, 696, 702, 728, 754, 756, 783, 812, 819, 864, 928, 936, 972, 1008, 1044, 1053, 1092, 1131, 1134, 1218, 1248, 1296, 1392, 1404, 1456, 1508, 1512, 1566, 1624, 1638, 1701, 1827, 1872, 1944, 2016, 2088, 2106, 2184, 2262, 2268, 2349, 2436, 2457, 2592, 2639, 2784, 2808, 2912, 3016, 3024, 3132, 3159, 3248, 3276, 3393, 3402, 3654, 3744, 3888, 4176, 4212, 4368, 4524, 4536, 4698, 4872, 4914, 5278, 5481, 5616, 6032, 6048, 6264, 6318, 6496, 6552, 6786, 6804, 7047, 7308, 7371, 7776, 7917, 8352, 8424, 8736, 9048, 9072, 9396, 9744, 9828, 10179, 10556, 10962, 11232, 12064, 12528, 12636, 13104, 13572, 13608, 14094, 14616, 14742, 15834, 16443, 16848, 18096, 18144, 18792, 19488, 19656, 20358, 21112, 21924, 22113, 23751, 25056, 25272, 26208, 27144, 27216, 28188, 29232, 29484, 30537, 31668, 32886, 33696, 36192, 37584, 39312, 40716, 42224, 43848, 44226, 47502, 49329, 50544, 54288, 54432, 56376, 58464, 58968, 61074, 63336, 65772, 71253, 75168, 78624, 81432, 84448, 87696, 88452, 91611, 95004, 98658, 101088, 108576, 112752, 117936, 122148, 126672, 131544, 142506, 162864, 175392, 176904, 183222, 190008, 197316, 213759, 225504, 235872, 244296, 253344, 263088, 285012, 325728, 353808, 366444, 380016, 394632, 427518, 488592, 526176, 570024, 641277, 707616, 732888, 760032, 789264, 855036, 977184, 1140048, 1282554, 1465776, 1578528, 1710072, 2280096, 2565108, 2931552, 3420144, 5130216, 6840288, 10260432, 20520864]

約数ペア:

[(1, 20520864), (2, 10260432), (3, 6840288), (4, 5130216), (6, 3420144), (7, 2931552), (8, 2565108), (9, 2280096), (12, 1710072), (13, 1578528), (14, 1465776), (16, 1282554), (18, 1140048), (21, 977184), (24, 855036), (26, 789264), (27, 760032), (28, 732888), (29, 707616), (32, 641277), (36, 570024), (39, 526176), (42, 488592), (48, 427518), (52, 394632), (54, 380016), (56, 366444), (58, 353808), (63, 325728), (72, 285012), (78, 263088), (81, 253344), (84, 244296), (87, 235872), (91, 225504), (96, 213759), (104, 197316), (108, 190008), (112, 183222), (116, 176904), (117, 175392), (126, 162864), (144, 142506), (156, 131544), (162, 126672), (168, 122148), (174, 117936), (182, 112752), (189, 108576), (203, 101088), (208, 98658), (216, 95004), (224, 91611), (232, 88452), (234, 87696), (243, 84448), (252, 81432), (261, 78624), (273, 75168), (288, 71253), (312, 65772), (324, 63336), (336, 61074), (348, 58968), (351, 58464), (364, 56376), (377, 54432), (378, 54288), (406, 50544), (416, 49329), (432, 47502), (464, 44226), (468, 43848), (486, 42224), (504, 40716), (522, 39312), (546, 37584), (567, 36192), (609, 33696), (624, 32886), (648, 31668), (672, 30537), (696, 29484), (702, 29232), (728, 28188), (754, 27216), (756, 27144), (783, 26208), (812, 25272), (819, 25056), (864, 23751), (928, 22113), (936, 21924), (972, 21112), (1008, 20358), (1044, 19656), (1053, 19488), (1092, 18792), (1131, 18144), (1134, 18096), (1218, 16848), (1248, 16443), (1296, 15834), (1392, 14742), (1404, 14616), (1456, 14094), (1508, 13608), (1512, 13572), (1566, 13104), (1624, 12636), (1638, 12528), (1701, 12064), (1827, 11232), (1872, 10962), (1944, 10556), (2016, 10179), (2088, 9828), (2106, 9744), (2184, 9396), (2262, 9072), (2268, 9048), (2349, 8736), (2436, 8424), (2457, 8352), (2592, 7917), (2639, 7776), (2784, 7371), (2808, 7308), (2912, 7047), (3016, 6804), (3024, 6786), (3132, 6552), (3159, 6496), (3248, 6318), (3276, 6264), (3393, 6048), (3402, 6032), (3654, 5616), (3744, 5481), (3888, 5278), (4176, 4914), (4212, 4872), (4368, 4698), (4524, 4536)]