19420128

素因数分解:

$2^5\times 3^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:71

約数の個数: 288

約数和(自身を含む): 73785600

約数和(自身を除く): 54365472

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 19, 21, 24, 26, 27, 28, 32, 36, 38, 39, 42, 48, 52, 54, 56, 57, 63, 72, 76, 78, 84, 91, 96, 104, 108, 112, 114, 117, 126, 133, 144, 152, 156, 168, 169, 171, 182, 189, 208, 216, 224, 228, 234, 247, 252, 266, 273, 288, 304, 312, 336, 338, 342, 351, 364, 378, 399, 416, 432, 456, 468, 494, 504, 507, 513, 532, 546, 608, 624, 672, 676, 684, 702, 728, 741, 756, 798, 819, 864, 912, 936, 988, 1008, 1014, 1026, 1064, 1092, 1183, 1197, 1248, 1352, 1368, 1404, 1456, 1482, 1512, 1521, 1596, 1638, 1729, 1824, 1872, 1976, 2016, 2028, 2052, 2128, 2184, 2223, 2366, 2394, 2457, 2704, 2736, 2808, 2912, 2964, 3024, 3042, 3192, 3211, 3276, 3458, 3549, 3591, 3744, 3952, 4056, 4104, 4256, 4368, 4446, 4563, 4732, 4788, 4914, 5187, 5408, 5472, 5616, 5928, 6048, 6084, 6384, 6422, 6552, 6669, 6916, 7098, 7182, 7904, 8112, 8208, 8736, 8892, 9126, 9464, 9576, 9633, 9828, 10374, 10647, 11232, 11856, 12168, 12768, 12844, 13104, 13338, 13832, 14196, 14364, 15561, 16224, 16416, 17784, 18252, 18928, 19152, 19266, 19656, 20748, 21294, 22477, 23712, 24336, 25688, 26208, 26676, 27664, 28392, 28728, 28899, 31122, 31941, 35568, 36504, 37856, 38304, 38532, 39312, 41496, 42588, 44954, 46683, 48672, 51376, 53352, 55328, 56784, 57456, 57798, 62244, 63882, 67431, 71136, 73008, 77064, 78624, 82992, 85176, 86697, 89908, 93366, 102752, 106704, 113568, 114912, 115596, 124488, 127764, 134862, 146016, 154128, 165984, 170352, 173394, 179816, 186732, 202293, 213408, 231192, 248976, 255528, 269724, 308256, 340704, 346788, 359632, 373464, 404586, 462384, 497952, 511056, 539448, 606879, 693576, 719264, 746928, 809172, 924768, 1022112, 1078896, 1213758, 1387152, 1493856, 1618344, 2157792, 2427516, 2774304, 3236688, 4855032, 6473376, 9710064, 19420128]

約数ペア:

[(1, 19420128), (2, 9710064), (3, 6473376), (4, 4855032), (6, 3236688), (7, 2774304), (8, 2427516), (9, 2157792), (12, 1618344), (13, 1493856), (14, 1387152), (16, 1213758), (18, 1078896), (19, 1022112), (21, 924768), (24, 809172), (26, 746928), (27, 719264), (28, 693576), (32, 606879), (36, 539448), (38, 511056), (39, 497952), (42, 462384), (48, 404586), (52, 373464), (54, 359632), (56, 346788), (57, 340704), (63, 308256), (72, 269724), (76, 255528), (78, 248976), (84, 231192), (91, 213408), (96, 202293), (104, 186732), (108, 179816), (112, 173394), (114, 170352), (117, 165984), (126, 154128), (133, 146016), (144, 134862), (152, 127764), (156, 124488), (168, 115596), (169, 114912), (171, 113568), (182, 106704), (189, 102752), (208, 93366), (216, 89908), (224, 86697), (228, 85176), (234, 82992), (247, 78624), (252, 77064), (266, 73008), (273, 71136), (288, 67431), (304, 63882), (312, 62244), (336, 57798), (338, 57456), (342, 56784), (351, 55328), (364, 53352), (378, 51376), (399, 48672), (416, 46683), (432, 44954), (456, 42588), (468, 41496), (494, 39312), (504, 38532), (507, 38304), (513, 37856), (532, 36504), (546, 35568), (608, 31941), (624, 31122), (672, 28899), (676, 28728), (684, 28392), (702, 27664), (728, 26676), (741, 26208), (756, 25688), (798, 24336), (819, 23712), (864, 22477), (912, 21294), (936, 20748), (988, 19656), (1008, 19266), (1014, 19152), (1026, 18928), (1064, 18252), (1092, 17784), (1183, 16416), (1197, 16224), (1248, 15561), (1352, 14364), (1368, 14196), (1404, 13832), (1456, 13338), (1482, 13104), (1512, 12844), (1521, 12768), (1596, 12168), (1638, 11856), (1729, 11232), (1824, 10647), (1872, 10374), (1976, 9828), (2016, 9633), (2028, 9576), (2052, 9464), (2128, 9126), (2184, 8892), (2223, 8736), (2366, 8208), (2394, 8112), (2457, 7904), (2704, 7182), (2736, 7098), (2808, 6916), (2912, 6669), (2964, 6552), (3024, 6422), (3042, 6384), (3192, 6084), (3211, 6048), (3276, 5928), (3458, 5616), (3549, 5472), (3591, 5408), (3744, 5187), (3952, 4914), (4056, 4788), (4104, 4732), (4256, 4563), (4368, 4446)]