15438760

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3541}}^1$

素因数の和:3661

約数の個数: 32

約数和(自身を含む): 35065800

約数和(自身を除く): 19627040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 3541, 4360, 7082, 14164, 17705, 28328, 35410, 70820, 141640, 385969, 771938, 1543876, 1929845, 3087752, 3859690, 7719380, 15438760]

約数ペア:

[(1, 15438760), (2, 7719380), (4, 3859690), (5, 3087752), (8, 1929845), (10, 1543876), (20, 771938), (40, 385969), (109, 141640), (218, 70820), (436, 35410), (545, 28328), (872, 17705), (1090, 14164), (2180, 7082), (3541, 4360)]