81157076

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20269}}^1$

素因数の和:20304

約数の個数: 48

約数和(自身を含む): 190700160

約数和(自身を除く): 109543084

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 20269, 40538, 81076, 141883, 222959, 263497, 283766, 445918, 526994, 567532, 891836, 1053988, 1560713, 1844479, 2898467, 3121426, 3688958, 5796934, 6242852, 7377916, 11593868, 20289269, 40578538, 81157076]

約数ペア:

[(1, 81157076), (2, 40578538), (4, 20289269), (7, 11593868), (11, 7377916), (13, 6242852), (14, 5796934), (22, 3688958), (26, 3121426), (28, 2898467), (44, 1844479), (52, 1560713), (77, 1053988), (91, 891836), (143, 567532), (154, 526994), (182, 445918), (286, 283766), (308, 263497), (364, 222959), (572, 141883), (1001, 81076), (2002, 40538), (4004, 20269)]