15352720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4463}}^1$

素因数の和:4519

約数の個数: 40

約数和(自身を含む): 36533376

約数和(自身を除く): 21180656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 4463, 8926, 17852, 22315, 35704, 44630, 71408, 89260, 178520, 191909, 357040, 383818, 767636, 959545, 1535272, 1919090, 3070544, 3838180, 7676360, 15352720]

約数ペア:

[(1, 15352720), (2, 7676360), (4, 3838180), (5, 3070544), (8, 1919090), (10, 1535272), (16, 959545), (20, 767636), (40, 383818), (43, 357040), (80, 191909), (86, 178520), (172, 89260), (215, 71408), (344, 44630), (430, 35704), (688, 22315), (860, 17852), (1720, 8926), (3440, 4463)]