20602090

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{461}}^1$

素因数の和:618

約数の個数: 32

約数和(自身を含む): 38419920

約数和(自身を除く): 17817830

約数列:

[1, 2, 5, 10, 41, 82, 109, 205, 218, 410, 461, 545, 922, 1090, 2305, 4469, 4610, 8938, 18901, 22345, 37802, 44690, 50249, 94505, 100498, 189010, 251245, 502490, 2060209, 4120418, 10301045, 20602090]

約数ペア:

[(1, 20602090), (2, 10301045), (5, 4120418), (10, 2060209), (41, 502490), (82, 251245), (109, 189010), (205, 100498), (218, 94505), (410, 50249), (461, 44690), (545, 37802), (922, 22345), (1090, 18901), (2305, 8938), (4469, 4610)]