19445980

素因数分解:

$2^2\times 5^1\times {\mathrm{503}}^1\times {\mathrm{1933}}^1$

素因数の和:2445

約数の個数: 24

約数和(自身を含む): 40938912

約数和(自身を除く): 21492932

約数列:

[1, 2, 4, 5, 10, 20, 503, 1006, 1933, 2012, 2515, 3866, 5030, 7732, 9665, 10060, 19330, 38660, 972299, 1944598, 3889196, 4861495, 9722990, 19445980]

約数ペア:

[(1, 19445980), (2, 9722990), (4, 4861495), (5, 3889196), (10, 1944598), (20, 972299), (503, 38660), (1006, 19330), (1933, 10060), (2012, 9665), (2515, 7732), (3866, 5030)]