13281040

素因数分解:

$2^4\times 5^1\times {\mathrm{166013}}^1$

素因数の和:166026

約数の個数: 20

約数和(自身を含む): 30878604

約数和(自身を除く): 17597564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 166013, 332026, 664052, 830065, 1328104, 1660130, 2656208, 3320260, 6640520, 13281040]

約数ペア:

[(1, 13281040), (2, 6640520), (4, 3320260), (5, 2656208), (8, 1660130), (10, 1328104), (16, 830065), (20, 664052), (40, 332026), (80, 166013)]