247937680

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{43651}}^1$

素因数の和:43735

約数の個数: 40

約数和(自身を含む): 584587584

約数和(自身を除く): 336649904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 43651, 87302, 174604, 218255, 349208, 436510, 698416, 873020, 1746040, 3099221, 3492080, 6198442, 12396884, 15496105, 24793768, 30992210, 49587536, 61984420, 123968840, 247937680]

約数ペア:

[(1, 247937680), (2, 123968840), (4, 61984420), (5, 49587536), (8, 30992210), (10, 24793768), (16, 15496105), (20, 12396884), (40, 6198442), (71, 3492080), (80, 3099221), (142, 1746040), (284, 873020), (355, 698416), (568, 436510), (710, 349208), (1136, 218255), (1420, 174604), (2840, 87302), (5680, 43651)]