20807648

素因数分解:

$2^5\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:279

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 21649312

約数列:

[1, 2, 4, 8, 16, 32, 59, 103, 107, 118, 206, 214, 236, 412, 428, 472, 824, 856, 944, 1648, 1712, 1888, 3296, 3424, 6077, 6313, 11021, 12154, 12626, 22042, 24308, 25252, 44084, 48616, 50504, 88168, 97232, 101008, 176336, 194464, 202016, 352672, 650239, 1300478, 2600956, 5201912, 10403824, 20807648]

約数ペア:

[(1, 20807648), (2, 10403824), (4, 5201912), (8, 2600956), (16, 1300478), (32, 650239), (59, 352672), (103, 202016), (107, 194464), (118, 176336), (206, 101008), (214, 97232), (236, 88168), (412, 50504), (428, 48616), (472, 44084), (824, 25252), (856, 24308), (944, 22042), (1648, 12626), (1712, 12154), (1888, 11021), (3296, 6313), (3424, 6077)]