129626440

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{12911}}^1$

素因数の和:13173

約数の個数: 32

約数和(自身を含む): 292844160

約数和(自身を除く): 163217720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 12911, 25822, 51644, 64555, 103288, 129110, 258220, 516440, 3240661, 6481322, 12962644, 16203305, 25925288, 32406610, 64813220, 129626440]

約数ペア:

[(1, 129626440), (2, 64813220), (4, 32406610), (5, 25925288), (8, 16203305), (10, 12962644), (20, 6481322), (40, 3240661), (251, 516440), (502, 258220), (1004, 129110), (1255, 103288), (2008, 64555), (2510, 51644), (5020, 25822), (10040, 12911)]