20364656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5153}}^1$

素因数の和:5193

約数の個数: 40

約数和(自身を含む): 44736720

約数和(自身を除く): 24372064

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 5153, 10306, 20612, 41224, 66989, 82448, 97907, 133978, 195814, 267956, 391628, 535912, 783256, 1071824, 1272791, 1566512, 2545582, 5091164, 10182328, 20364656]

約数ペア:

[(1, 20364656), (2, 10182328), (4, 5091164), (8, 2545582), (13, 1566512), (16, 1272791), (19, 1071824), (26, 783256), (38, 535912), (52, 391628), (76, 267956), (104, 195814), (152, 133978), (208, 97907), (247, 82448), (304, 66989), (494, 41224), (988, 20612), (1976, 10306), (3952, 5153)]