1944987280

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{223049}}^1$

素因数の和:223171

約数の個数: 40

約数和(自身を含む): 4563603000

約数和(自身を除く): 2618615720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 223049, 446098, 892196, 1115245, 1784392, 2230490, 3568784, 4460980, 8921960, 17843920, 24312341, 48624682, 97249364, 121561705, 194498728, 243123410, 388997456, 486246820, 972493640, 1944987280]

約数ペア:

[(1, 1944987280), (2, 972493640), (4, 486246820), (5, 388997456), (8, 243123410), (10, 194498728), (16, 121561705), (20, 97249364), (40, 48624682), (80, 24312341), (109, 17843920), (218, 8921960), (436, 4460980), (545, 3568784), (872, 2230490), (1090, 1784392), (1744, 1115245), (2180, 892196), (4360, 446098), (8720, 223049)]