209780454

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{72689}}^1$

素因数の和:72744

約数の個数: 32

約数和(自身を含む): 464052960

約数和(自身を除く): 254272506

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 111, 222, 481, 962, 1443, 2886, 72689, 145378, 218067, 436134, 944957, 1889914, 2689493, 2834871, 5378986, 5669742, 8068479, 16136958, 34963409, 69926818, 104890227, 209780454]

約数ペア:

[(1, 209780454), (2, 104890227), (3, 69926818), (6, 34963409), (13, 16136958), (26, 8068479), (37, 5669742), (39, 5378986), (74, 2834871), (78, 2689493), (111, 1889914), (222, 944957), (481, 436134), (962, 218067), (1443, 145378), (2886, 72689)]