28991872

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:184

約数の個数: 128

約数和(自身を含む): 75398400

約数和(自身を除く): 46406528

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 32, 38, 52, 56, 64, 76, 91, 104, 112, 128, 131, 133, 152, 182, 208, 224, 247, 262, 266, 304, 364, 416, 448, 494, 524, 532, 608, 728, 832, 896, 917, 988, 1048, 1064, 1216, 1456, 1664, 1703, 1729, 1834, 1976, 2096, 2128, 2432, 2489, 2912, 3406, 3458, 3668, 3952, 4192, 4256, 4978, 5824, 6812, 6916, 7336, 7904, 8384, 8512, 9956, 11648, 11921, 13624, 13832, 14672, 15808, 16768, 17024, 17423, 19912, 23842, 27248, 27664, 29344, 31616, 32357, 34846, 39824, 47684, 54496, 55328, 58688, 64714, 69692, 79648, 95368, 108992, 110656, 117376, 129428, 139384, 159296, 190736, 217984, 221312, 226499, 258856, 278768, 318592, 381472, 452998, 517712, 557536, 762944, 905996, 1035424, 1115072, 1525888, 1811992, 2070848, 2230144, 3623984, 4141696, 7247968, 14495936, 28991872]

約数ペア:

[(1, 28991872), (2, 14495936), (4, 7247968), (7, 4141696), (8, 3623984), (13, 2230144), (14, 2070848), (16, 1811992), (19, 1525888), (26, 1115072), (28, 1035424), (32, 905996), (38, 762944), (52, 557536), (56, 517712), (64, 452998), (76, 381472), (91, 318592), (104, 278768), (112, 258856), (128, 226499), (131, 221312), (133, 217984), (152, 190736), (182, 159296), (208, 139384), (224, 129428), (247, 117376), (262, 110656), (266, 108992), (304, 95368), (364, 79648), (416, 69692), (448, 64714), (494, 58688), (524, 55328), (532, 54496), (608, 47684), (728, 39824), (832, 34846), (896, 32357), (917, 31616), (988, 29344), (1048, 27664), (1064, 27248), (1216, 23842), (1456, 19912), (1664, 17423), (1703, 17024), (1729, 16768), (1834, 15808), (1976, 14672), (2096, 13832), (2128, 13624), (2432, 11921), (2489, 11648), (2912, 9956), (3406, 8512), (3458, 8384), (3668, 7904), (3952, 7336), (4192, 6916), (4256, 6812), (4978, 5824)]