218005120

素因数分解:

$2^7\times 5^1\times {\mathrm{340633}}^1$

素因数の和:340652

約数の個数: 32

約数和(自身を含む): 521170020

約数和(自身を除く): 303164900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 340633, 681266, 1362532, 1703165, 2725064, 3406330, 5450128, 6812660, 10900256, 13625320, 21800512, 27250640, 43601024, 54501280, 109002560, 218005120]

約数ペア:

[(1, 218005120), (2, 109002560), (4, 54501280), (5, 43601024), (8, 27250640), (10, 21800512), (16, 13625320), (20, 10900256), (32, 6812660), (40, 5450128), (64, 3406330), (80, 2725064), (128, 1703165), (160, 1362532), (320, 681266), (640, 340633)]