197702020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{3943}}^1$

素因数の和:4084

約数の個数: 48

約数和(自身を含む): 437310720

約数和(自身を除く): 239608700

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 109, 115, 218, 230, 436, 460, 545, 1090, 2180, 2507, 3943, 5014, 7886, 10028, 12535, 15772, 19715, 25070, 39430, 50140, 78860, 90689, 181378, 362756, 429787, 453445, 859574, 906890, 1719148, 1813780, 2148935, 4297870, 8595740, 9885101, 19770202, 39540404, 49425505, 98851010, 197702020]

約数ペア:

[(1, 197702020), (2, 98851010), (4, 49425505), (5, 39540404), (10, 19770202), (20, 9885101), (23, 8595740), (46, 4297870), (92, 2148935), (109, 1813780), (115, 1719148), (218, 906890), (230, 859574), (436, 453445), (460, 429787), (545, 362756), (1090, 181378), (2180, 90689), (2507, 78860), (3943, 50140), (5014, 39430), (7886, 25070), (10028, 19715), (12535, 15772)]