20199077720

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3389107}}^1$

素因数の和:3389267

約数の個数: 32

約数和(自身を含む): 45752958000

約数和(自身を除く): 25553880280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 3389107, 6778214, 13556428, 16945535, 27112856, 33891070, 67782140, 135564280, 504976943, 1009953886, 2019907772, 2524884715, 4039815544, 5049769430, 10099538860, 20199077720]

約数ペア:

[(1, 20199077720), (2, 10099538860), (4, 5049769430), (5, 4039815544), (8, 2524884715), (10, 2019907772), (20, 1009953886), (40, 504976943), (149, 135564280), (298, 67782140), (596, 33891070), (745, 27112856), (1192, 16945535), (1490, 13556428), (2980, 6778214), (5960, 3389107)]