20457164

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1307}}^1$

素因数の和:1374

約数の個数: 48

約数和(自身を含む): 45120768

約数和(自身を除く): 24663604

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 52, 86, 91, 172, 182, 301, 364, 559, 602, 1118, 1204, 1307, 2236, 2614, 3913, 5228, 7826, 9149, 15652, 16991, 18298, 33982, 36596, 56201, 67964, 112402, 118937, 224804, 237874, 393407, 475748, 730613, 786814, 1461226, 1573628, 2922452, 5114291, 10228582, 20457164]

約数ペア:

[(1, 20457164), (2, 10228582), (4, 5114291), (7, 2922452), (13, 1573628), (14, 1461226), (26, 786814), (28, 730613), (43, 475748), (52, 393407), (86, 237874), (91, 224804), (172, 118937), (182, 112402), (301, 67964), (364, 56201), (559, 36596), (602, 33982), (1118, 18298), (1204, 16991), (1307, 15652), (2236, 9149), (2614, 7826), (3913, 5228)]