15765520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4583}}^1$

素因数の和:4639

約数の個数: 40

約数和(自身を含む): 37515456

約数和(自身を除く): 21749936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 4583, 9166, 18332, 22915, 36664, 45830, 73328, 91660, 183320, 197069, 366640, 394138, 788276, 985345, 1576552, 1970690, 3153104, 3941380, 7882760, 15765520]

約数ペア:

[(1, 15765520), (2, 7882760), (4, 3941380), (5, 3153104), (8, 1970690), (10, 1576552), (16, 985345), (20, 788276), (40, 394138), (43, 366640), (80, 197069), (86, 183320), (172, 91660), (215, 73328), (344, 45830), (430, 36664), (688, 22915), (860, 18332), (1720, 9166), (3440, 4583)]