11280020

素因数分解:

$2^2\times 5^1\times {\mathrm{751}}^2$

素因数の和:1511

約数の個数: 18

約数和(自身を含む): 23719626

約数和(自身を除く): 12439606

約数列:

[1, 2, 4, 5, 10, 20, 751, 1502, 3004, 3755, 7510, 15020, 564001, 1128002, 2256004, 2820005, 5640010, 11280020]

約数ペア:

[(1, 11280020), (2, 5640010), (4, 2820005), (5, 2256004), (10, 1128002), (20, 564001), (751, 15020), (1502, 7510), (3004, 3755)]