28361984

素因数分解:

$2^8\times 7^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:73

約数の個数: 144

約数和(自身を含む): 73584000

約数和(自身を除く): 45222016

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 19, 28, 32, 34, 38, 49, 56, 64, 68, 76, 98, 112, 119, 128, 133, 136, 152, 196, 224, 238, 256, 266, 272, 304, 323, 343, 392, 448, 476, 532, 544, 608, 646, 686, 784, 833, 896, 931, 952, 1064, 1088, 1216, 1292, 1372, 1568, 1666, 1792, 1862, 1904, 2128, 2176, 2261, 2432, 2584, 2744, 3136, 3332, 3724, 3808, 4256, 4352, 4522, 4864, 5168, 5488, 5831, 6272, 6517, 6664, 7448, 7616, 8512, 9044, 10336, 10976, 11662, 12544, 13034, 13328, 14896, 15232, 15827, 17024, 18088, 20672, 21952, 23324, 26068, 26656, 29792, 30464, 31654, 34048, 36176, 41344, 43904, 46648, 52136, 53312, 59584, 63308, 72352, 82688, 87808, 93296, 104272, 106624, 110789, 119168, 126616, 144704, 186592, 208544, 213248, 221578, 238336, 253232, 289408, 373184, 417088, 443156, 506464, 578816, 746368, 834176, 886312, 1012928, 1492736, 1668352, 1772624, 2025856, 3545248, 4051712, 7090496, 14180992, 28361984]

約数ペア:

[(1, 28361984), (2, 14180992), (4, 7090496), (7, 4051712), (8, 3545248), (14, 2025856), (16, 1772624), (17, 1668352), (19, 1492736), (28, 1012928), (32, 886312), (34, 834176), (38, 746368), (49, 578816), (56, 506464), (64, 443156), (68, 417088), (76, 373184), (98, 289408), (112, 253232), (119, 238336), (128, 221578), (133, 213248), (136, 208544), (152, 186592), (196, 144704), (224, 126616), (238, 119168), (256, 110789), (266, 106624), (272, 104272), (304, 93296), (323, 87808), (343, 82688), (392, 72352), (448, 63308), (476, 59584), (532, 53312), (544, 52136), (608, 46648), (646, 43904), (686, 41344), (784, 36176), (833, 34048), (896, 31654), (931, 30464), (952, 29792), (1064, 26656), (1088, 26068), (1216, 23324), (1292, 21952), (1372, 20672), (1568, 18088), (1666, 17024), (1792, 15827), (1862, 15232), (1904, 14896), (2128, 13328), (2176, 13034), (2261, 12544), (2432, 11662), (2584, 10976), (2744, 10336), (3136, 9044), (3332, 8512), (3724, 7616), (3808, 7448), (4256, 6664), (4352, 6517), (4522, 6272), (4864, 5831), (5168, 5488)]