172971380

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{24781}}^1$

素因数の和:25139

約数の個数: 24

約数和(自身を含む): 364295400

約数和(自身を除く): 191324020

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 6980, 24781, 49562, 99124, 123905, 247810, 495620, 8648569, 17297138, 34594276, 43242845, 86485690, 172971380]

約数ペア:

[(1, 172971380), (2, 86485690), (4, 43242845), (5, 34594276), (10, 17297138), (20, 8648569), (349, 495620), (698, 247810), (1396, 123905), (1745, 99124), (3490, 49562), (6980, 24781)]