18500420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{54413}}^1$

素因数の和:54439

約数の個数: 24

約数和(自身を含む): 41136984

約数和(自身を除く): 22636564

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 54413, 108826, 217652, 272065, 544130, 925021, 1088260, 1850042, 3700084, 4625105, 9250210, 18500420]

約数ペア:

[(1, 18500420), (2, 9250210), (4, 4625105), (5, 3700084), (10, 1850042), (17, 1088260), (20, 925021), (34, 544130), (68, 272065), (85, 217652), (170, 108826), (340, 54413)]