205337680

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{36151}}^1$

素因数の和:36235

約数の個数: 40

約数和(自身を含む): 484147584

約数和(自身を除く): 278809904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 36151, 72302, 144604, 180755, 289208, 361510, 578416, 723020, 1446040, 2566721, 2892080, 5133442, 10266884, 12833605, 20533768, 25667210, 41067536, 51334420, 102668840, 205337680]

約数ペア:

[(1, 205337680), (2, 102668840), (4, 51334420), (5, 41067536), (8, 25667210), (10, 20533768), (16, 12833605), (20, 10266884), (40, 5133442), (71, 2892080), (80, 2566721), (142, 1446040), (284, 723020), (355, 578416), (568, 361510), (710, 289208), (1136, 180755), (1420, 144604), (2840, 72302), (5680, 36151)]