20199665140

素因数分解:

$2^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{2007919}}^1$

素因数の和:2008431

約数の個数: 24

約数和(自身を含む): 42503650560

約数和(自身を除く): 22303985420

約数列:

[1, 2, 4, 5, 10, 20, 503, 1006, 2012, 2515, 5030, 10060, 2007919, 4015838, 8031676, 10039595, 20079190, 40158380, 1009983257, 2019966514, 4039933028, 5049916285, 10099832570, 20199665140]

約数ペア:

[(1, 20199665140), (2, 10099832570), (4, 5049916285), (5, 4039933028), (10, 2019966514), (20, 1009983257), (503, 40158380), (1006, 20079190), (2012, 10039595), (2515, 8031676), (5030, 4015838), (10060, 2007919)]