201913780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{4027}}^1$

素因数の和:4168

約数の個数: 48

約数和(自身を含む): 446624640

約数和(自身を除く): 244710860

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 109, 115, 218, 230, 436, 460, 545, 1090, 2180, 2507, 4027, 5014, 8054, 10028, 12535, 16108, 20135, 25070, 40270, 50140, 80540, 92621, 185242, 370484, 438943, 463105, 877886, 926210, 1755772, 1852420, 2194715, 4389430, 8778860, 10095689, 20191378, 40382756, 50478445, 100956890, 201913780]

約数ペア:

[(1, 201913780), (2, 100956890), (4, 50478445), (5, 40382756), (10, 20191378), (20, 10095689), (23, 8778860), (46, 4389430), (92, 2194715), (109, 1852420), (115, 1755772), (218, 926210), (230, 877886), (436, 463105), (460, 438943), (545, 370484), (1090, 185242), (2180, 92621), (2507, 80540), (4027, 50140), (5014, 40270), (8054, 25070), (10028, 20135), (12535, 16108)]