42005120

素因数分解:

$2^7\times 5^1\times {\mathrm{65633}}^1$

素因数の和:65652

約数の個数: 32

約数和(自身を含む): 100420020

約数和(自身を除く): 58414900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 65633, 131266, 262532, 328165, 525064, 656330, 1050128, 1312660, 2100256, 2625320, 4200512, 5250640, 8401024, 10501280, 21002560, 42005120]

約数ペア:

[(1, 42005120), (2, 21002560), (4, 10501280), (5, 8401024), (8, 5250640), (10, 4200512), (16, 2625320), (20, 2100256), (32, 1312660), (40, 1050128), (64, 656330), (80, 525064), (128, 328165), (160, 262532), (320, 131266), (640, 65633)]