20708928

素因数分解:

$2^6\times 3^2\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:404

約数の個数: 84

約数和(自身を含む): 59997340

約数和(自身を除く): 39288412

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 144, 157, 192, 229, 288, 314, 458, 471, 576, 628, 687, 916, 942, 1256, 1374, 1413, 1832, 1884, 2061, 2512, 2748, 2826, 3664, 3768, 4122, 5024, 5496, 5652, 7328, 7536, 8244, 10048, 10992, 11304, 14656, 15072, 16488, 21984, 22608, 30144, 32976, 35953, 43968, 45216, 65952, 71906, 90432, 107859, 131904, 143812, 215718, 287624, 323577, 431436, 575248, 647154, 862872, 1150496, 1294308, 1725744, 2300992, 2588616, 3451488, 5177232, 6902976, 10354464, 20708928]

約数ペア:

[(1, 20708928), (2, 10354464), (3, 6902976), (4, 5177232), (6, 3451488), (8, 2588616), (9, 2300992), (12, 1725744), (16, 1294308), (18, 1150496), (24, 862872), (32, 647154), (36, 575248), (48, 431436), (64, 323577), (72, 287624), (96, 215718), (144, 143812), (157, 131904), (192, 107859), (229, 90432), (288, 71906), (314, 65952), (458, 45216), (471, 43968), (576, 35953), (628, 32976), (687, 30144), (916, 22608), (942, 21984), (1256, 16488), (1374, 15072), (1413, 14656), (1832, 11304), (1884, 10992), (2061, 10048), (2512, 8244), (2748, 7536), (2826, 7328), (3664, 5652), (3768, 5496), (4122, 5024)]