22678540

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 49008960

約数和(自身を除く): 26330420

約数列:

[1, 2, 4, 5, 10, 20, 101, 103, 109, 202, 206, 218, 404, 412, 436, 505, 515, 545, 1010, 1030, 1090, 2020, 2060, 2180, 10403, 11009, 11227, 20806, 22018, 22454, 41612, 44036, 44908, 52015, 55045, 56135, 104030, 110090, 112270, 208060, 220180, 224540, 1133927, 2267854, 4535708, 5669635, 11339270, 22678540]

約数ペア:

[(1, 22678540), (2, 11339270), (4, 5669635), (5, 4535708), (10, 2267854), (20, 1133927), (101, 224540), (103, 220180), (109, 208060), (202, 112270), (206, 110090), (218, 104030), (404, 56135), (412, 55045), (436, 52015), (505, 44908), (515, 44036), (545, 41612), (1010, 22454), (1030, 22018), (1090, 20806), (2020, 11227), (2060, 11009), (2180, 10403)]