20719519005

素因数分解:

$3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1\times {\mathrm{25919}}^1$

素因数の和:26453

約数の個数: 32

約数和(自身を含む): 33480345600

約数和(自身を除く): 12760826595

約数列:

[1, 3, 5, 15, 137, 389, 411, 685, 1167, 1945, 2055, 5835, 25919, 53293, 77757, 129595, 159879, 266465, 388785, 799395, 3550903, 10082491, 10652709, 17754515, 30247473, 50412455, 53263545, 151237365, 1381301267, 4143903801, 6906506335, 20719519005]

約数ペア:

[(1, 20719519005), (3, 6906506335), (5, 4143903801), (15, 1381301267), (137, 151237365), (389, 53263545), (411, 50412455), (685, 30247473), (1167, 17754515), (1945, 10652709), (2055, 10082491), (5835, 3550903), (25919, 799395), (53293, 388785), (77757, 266465), (129595, 159879)]