18888966728

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{1249}}^1\times {\mathrm{43963}}^1$

素因数の和:45261

約数の個数: 32

約数和(自身を含む): 36270300000

約数和(自身を除く): 17381333272

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 1249, 2498, 4996, 9992, 43963, 53707, 87926, 107414, 175852, 214828, 351704, 429656, 1890409, 3780818, 7561636, 15123272, 54909787, 109819574, 219639148, 439278296, 2361120841, 4722241682, 9444483364, 18888966728]

約数ペア:

[(1, 18888966728), (2, 9444483364), (4, 4722241682), (8, 2361120841), (43, 439278296), (86, 219639148), (172, 109819574), (344, 54909787), (1249, 15123272), (2498, 7561636), (4996, 3780818), (9992, 1890409), (43963, 429656), (53707, 351704), (87926, 214828), (107414, 175852)]