20827424

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:273

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 21629536

約数列:

[1, 2, 4, 8, 16, 32, 71, 89, 103, 142, 178, 206, 284, 356, 412, 568, 712, 824, 1136, 1424, 1648, 2272, 2848, 3296, 6319, 7313, 9167, 12638, 14626, 18334, 25276, 29252, 36668, 50552, 58504, 73336, 101104, 117008, 146672, 202208, 234016, 293344, 650857, 1301714, 2603428, 5206856, 10413712, 20827424]

約数ペア:

[(1, 20827424), (2, 10413712), (4, 5206856), (8, 2603428), (16, 1301714), (32, 650857), (71, 293344), (89, 234016), (103, 202208), (142, 146672), (178, 117008), (206, 101104), (284, 73336), (356, 58504), (412, 50552), (568, 36668), (712, 29252), (824, 25276), (1136, 18334), (1424, 14626), (1648, 12638), (2272, 9167), (2848, 7313), (3296, 6319)]