20828032

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 44553600

約数和(自身を除く): 23725568

約数列:

[1, 2, 4, 8, 16, 29, 31, 32, 58, 62, 64, 116, 124, 128, 181, 232, 248, 362, 464, 496, 724, 899, 928, 992, 1448, 1798, 1856, 1984, 2896, 3596, 3712, 3968, 5249, 5611, 5792, 7192, 10498, 11222, 11584, 14384, 20996, 22444, 23168, 28768, 41992, 44888, 57536, 83984, 89776, 115072, 162719, 167968, 179552, 325438, 335936, 359104, 650876, 671872, 718208, 1301752, 2603504, 5207008, 10414016, 20828032]

約数ペア:

[(1, 20828032), (2, 10414016), (4, 5207008), (8, 2603504), (16, 1301752), (29, 718208), (31, 671872), (32, 650876), (58, 359104), (62, 335936), (64, 325438), (116, 179552), (124, 167968), (128, 162719), (181, 115072), (232, 89776), (248, 83984), (362, 57536), (464, 44888), (496, 41992), (724, 28768), (899, 23168), (928, 22444), (992, 20996), (1448, 14384), (1798, 11584), (1856, 11222), (1984, 10498), (2896, 7192), (3596, 5792), (3712, 5611), (3968, 5249)]