25352540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{14243}}^1$

素因数の和:14341

約数の個数: 24

約数和(自身を含む): 53842320

約数和(自身を除く): 28489780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 14243, 28486, 56972, 71215, 142430, 284860, 1267627, 2535254, 5070508, 6338135, 12676270, 25352540]

約数ペア:

[(1, 25352540), (2, 12676270), (4, 6338135), (5, 5070508), (10, 2535254), (20, 1267627), (89, 284860), (178, 142430), (356, 71215), (445, 56972), (890, 28486), (1780, 14243)]