2789320

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{509}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 6334200

約数和(自身を除く): 3544880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 509, 548, 685, 1018, 1096, 1370, 2036, 2545, 2740, 4072, 5090, 5480, 10180, 20360, 69733, 139466, 278932, 348665, 557864, 697330, 1394660, 2789320]

約数ペア:

[(1, 2789320), (2, 1394660), (4, 697330), (5, 557864), (8, 348665), (10, 278932), (20, 139466), (40, 69733), (137, 20360), (274, 10180), (509, 5480), (548, 5090), (685, 4072), (1018, 2740), (1096, 2545), (1370, 2036)]