25813520

素因数分解:

$2^4\times 5^1\times {\mathrm{322669}}^1$

素因数の和:322682

約数の個数: 20

約数和(自身を含む): 60016620

約数和(自身を除く): 34203100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 322669, 645338, 1290676, 1613345, 2581352, 3226690, 5162704, 6453380, 12906760, 25813520]

約数ペア:

[(1, 25813520), (2, 12906760), (4, 6453380), (5, 5162704), (8, 3226690), (10, 2581352), (16, 1613345), (20, 1290676), (40, 645338), (80, 322669)]