10123280

素因数分解:

$2^4\times 5^1\times {\mathrm{126541}}^1$

素因数の和:126554

約数の個数: 20

約数和(自身を含む): 23536812

約数和(自身を除く): 13413532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 126541, 253082, 506164, 632705, 1012328, 1265410, 2024656, 2530820, 5061640, 10123280]

約数ペア:

[(1, 10123280), (2, 5061640), (4, 2530820), (5, 2024656), (8, 1265410), (10, 1012328), (16, 632705), (20, 506164), (40, 253082), (80, 126541)]