20645870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{4999}}^1$

素因数の和:5072

約数の個数: 32

約数和(自身を含む): 43200000

約数和(自身を除く): 22554130

約数列:

[1, 2, 5, 7, 10, 14, 35, 59, 70, 118, 295, 413, 590, 826, 2065, 4130, 4999, 9998, 24995, 34993, 49990, 69986, 174965, 294941, 349930, 589882, 1474705, 2064587, 2949410, 4129174, 10322935, 20645870]

約数ペア:

[(1, 20645870), (2, 10322935), (5, 4129174), (7, 2949410), (10, 2064587), (14, 1474705), (35, 589882), (59, 349930), (70, 294941), (118, 174965), (295, 69986), (413, 49990), (590, 34993), (826, 24995), (2065, 9998), (4130, 4999)]