19991270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1493}}^1$

素因数の和:1616

約数の個数: 32

約数和(自身を含む): 39154752

約数和(自身を除く): 19163482

約数列:

[1, 2, 5, 10, 13, 26, 65, 103, 130, 206, 515, 1030, 1339, 1493, 2678, 2986, 6695, 7465, 13390, 14930, 19409, 38818, 97045, 153779, 194090, 307558, 768895, 1537790, 1999127, 3998254, 9995635, 19991270]

約数ペア:

[(1, 19991270), (2, 9995635), (5, 3998254), (10, 1999127), (13, 1537790), (26, 768895), (65, 307558), (103, 194090), (130, 153779), (206, 97045), (515, 38818), (1030, 19409), (1339, 14930), (1493, 13390), (2678, 7465), (2986, 6695)]