20120457860

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12734467}}^1$

素因数の和:12734555

約数の個数: 24

約数和(自身を含む): 42787812480

約数和(自身を除く): 22667354620

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 12734467, 25468934, 50937868, 63672335, 127344670, 254689340, 1006022893, 2012045786, 4024091572, 5030114465, 10060228930, 20120457860]

約数ペア:

[(1, 20120457860), (2, 10060228930), (4, 5030114465), (5, 4024091572), (10, 2012045786), (20, 1006022893), (79, 254689340), (158, 127344670), (316, 63672335), (395, 50937868), (790, 25468934), (1580, 12734467)]