1278989855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{22643}}^1$

素因数の和:22751

約数の個数: 32

約数和(自身を含む): 1826012160

約数和(自身を除く): 547022305

約数列:

[1, 5, 11, 13, 55, 65, 79, 143, 395, 715, 869, 1027, 4345, 5135, 11297, 22643, 56485, 113215, 249073, 294359, 1245365, 1471795, 1788797, 3237949, 8943985, 16189745, 19676767, 23254361, 98383835, 116271805, 255797971, 1278989855]

約数ペア:

[(1, 1278989855), (5, 255797971), (11, 116271805), (13, 98383835), (55, 23254361), (65, 19676767), (79, 16189745), (143, 8943985), (395, 3237949), (715, 1788797), (869, 1471795), (1027, 1245365), (4345, 294359), (5135, 249073), (11297, 113215), (22643, 56485)]