51915520

素因数分解:

$2^8\times 5^1\times {\mathrm{40559}}^1$

素因数の和:40580

約数の個数: 36

約数和(自身を含む): 124356960

約数和(自身を除く): 72441440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 40559, 81118, 162236, 202795, 324472, 405590, 648944, 811180, 1297888, 1622360, 2595776, 3244720, 5191552, 6489440, 10383104, 12978880, 25957760, 51915520]

約数ペア:

[(1, 51915520), (2, 25957760), (4, 12978880), (5, 10383104), (8, 6489440), (10, 5191552), (16, 3244720), (20, 2595776), (32, 1622360), (40, 1297888), (64, 811180), (80, 648944), (128, 405590), (160, 324472), (256, 202795), (320, 162236), (640, 81118), (1280, 40559)]