1287088

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:193

約数の個数: 40

約数和(自身を含む): 2785536

約数和(自身を除く): 1498448

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 71, 88, 103, 142, 176, 206, 284, 412, 568, 781, 824, 1133, 1136, 1562, 1648, 2266, 3124, 4532, 6248, 7313, 9064, 12496, 14626, 18128, 29252, 58504, 80443, 117008, 160886, 321772, 643544, 1287088]

約数ペア:

[(1, 1287088), (2, 643544), (4, 321772), (8, 160886), (11, 117008), (16, 80443), (22, 58504), (44, 29252), (71, 18128), (88, 14626), (103, 12496), (142, 9064), (176, 7313), (206, 6248), (284, 4532), (412, 3124), (568, 2266), (781, 1648), (824, 1562), (1133, 1136)]