20499024

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^2$

素因数の和:82

約数の個数: 180

約数和(自身を含む): 69165216

約数和(自身を除く): 48666192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 19, 21, 24, 26, 28, 38, 39, 42, 48, 52, 56, 57, 76, 78, 84, 91, 104, 112, 114, 133, 152, 156, 168, 169, 182, 208, 228, 247, 266, 273, 304, 312, 336, 338, 361, 364, 399, 456, 494, 507, 532, 546, 624, 676, 722, 728, 741, 798, 912, 988, 1014, 1064, 1083, 1092, 1183, 1352, 1444, 1456, 1482, 1596, 1729, 1976, 2028, 2128, 2166, 2184, 2366, 2527, 2704, 2888, 2964, 3192, 3211, 3458, 3549, 3952, 4056, 4332, 4368, 4693, 4732, 5054, 5187, 5776, 5928, 6384, 6422, 6916, 7098, 7581, 8112, 8664, 9386, 9464, 9633, 10108, 10374, 11856, 12844, 13832, 14079, 14196, 15162, 17328, 18772, 18928, 19266, 20216, 20748, 22477, 25688, 27664, 28158, 28392, 30324, 32851, 37544, 38532, 40432, 41496, 44954, 51376, 56316, 56784, 60648, 61009, 65702, 67431, 75088, 77064, 82992, 89908, 98553, 112632, 121296, 122018, 131404, 134862, 154128, 179816, 183027, 197106, 225264, 244036, 262808, 269724, 359632, 366054, 394212, 427063, 488072, 525616, 539448, 732108, 788424, 854126, 976144, 1078896, 1281189, 1464216, 1576848, 1708252, 2562378, 2928432, 3416504, 5124756, 6833008, 10249512, 20499024]

約数ペア:

[(1, 20499024), (2, 10249512), (3, 6833008), (4, 5124756), (6, 3416504), (7, 2928432), (8, 2562378), (12, 1708252), (13, 1576848), (14, 1464216), (16, 1281189), (19, 1078896), (21, 976144), (24, 854126), (26, 788424), (28, 732108), (38, 539448), (39, 525616), (42, 488072), (48, 427063), (52, 394212), (56, 366054), (57, 359632), (76, 269724), (78, 262808), (84, 244036), (91, 225264), (104, 197106), (112, 183027), (114, 179816), (133, 154128), (152, 134862), (156, 131404), (168, 122018), (169, 121296), (182, 112632), (208, 98553), (228, 89908), (247, 82992), (266, 77064), (273, 75088), (304, 67431), (312, 65702), (336, 61009), (338, 60648), (361, 56784), (364, 56316), (399, 51376), (456, 44954), (494, 41496), (507, 40432), (532, 38532), (546, 37544), (624, 32851), (676, 30324), (722, 28392), (728, 28158), (741, 27664), (798, 25688), (912, 22477), (988, 20748), (1014, 20216), (1064, 19266), (1083, 18928), (1092, 18772), (1183, 17328), (1352, 15162), (1444, 14196), (1456, 14079), (1482, 13832), (1596, 12844), (1729, 11856), (1976, 10374), (2028, 10108), (2128, 9633), (2166, 9464), (2184, 9386), (2366, 8664), (2527, 8112), (2704, 7581), (2888, 7098), (2964, 6916), (3192, 6422), (3211, 6384), (3458, 5928), (3549, 5776), (3952, 5187), (4056, 5054), (4332, 4732), (4368, 4693)]