804520520

素因数分解:

$2^3\times 5^1\times {\mathrm{20113013}}^1$

素因数の和:20113024

約数の個数: 16

約数和(自身を含む): 1810171260

約数和(自身を除く): 1005650740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 20113013, 40226026, 80452052, 100565065, 160904104, 201130130, 402260260, 804520520]

約数ペア:

[(1, 804520520), (2, 402260260), (4, 201130130), (5, 160904104), (8, 100565065), (10, 80452052), (20, 40226026), (40, 20113013)]