720937984

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1747}}^1$

素因数の和:1811

約数の個数: 88

約数和(自身を含む): 1603013888

約数和(自身を除く): 882075904

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 512, 806, 832, 992, 1024, 1612, 1664, 1747, 1984, 3224, 3328, 3494, 3968, 6448, 6656, 6988, 7936, 12896, 13312, 13976, 15872, 22711, 25792, 27952, 31744, 45422, 51584, 54157, 55904, 90844, 103168, 108314, 111808, 181688, 206336, 216628, 223616, 363376, 412672, 433256, 447232, 704041, 726752, 866512, 894464, 1408082, 1453504, 1733024, 1788928, 2816164, 2907008, 3466048, 5632328, 5814016, 6932096, 11264656, 11628032, 13864192, 22529312, 23256064, 27728384, 45058624, 55456768, 90117248, 180234496, 360468992, 720937984]

約数ペア:

[(1, 720937984), (2, 360468992), (4, 180234496), (8, 90117248), (13, 55456768), (16, 45058624), (26, 27728384), (31, 23256064), (32, 22529312), (52, 13864192), (62, 11628032), (64, 11264656), (104, 6932096), (124, 5814016), (128, 5632328), (208, 3466048), (248, 2907008), (256, 2816164), (403, 1788928), (416, 1733024), (496, 1453504), (512, 1408082), (806, 894464), (832, 866512), (992, 726752), (1024, 704041), (1612, 447232), (1664, 433256), (1747, 412672), (1984, 363376), (3224, 223616), (3328, 216628), (3494, 206336), (3968, 181688), (6448, 111808), (6656, 108314), (6988, 103168), (7936, 90844), (12896, 55904), (13312, 54157), (13976, 51584), (15872, 45422), (22711, 31744), (25792, 27952)]