19407320

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1933}}^1$

素因数の和:2195

約数の個数: 32

約数和(自身を含む): 43863120

約数和(自身を除く): 24455800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 1933, 2008, 2510, 3866, 5020, 7732, 9665, 10040, 15464, 19330, 38660, 77320, 485183, 970366, 1940732, 2425915, 3881464, 4851830, 9703660, 19407320]

約数ペア:

[(1, 19407320), (2, 9703660), (4, 4851830), (5, 3881464), (8, 2425915), (10, 1940732), (20, 970366), (40, 485183), (251, 77320), (502, 38660), (1004, 19330), (1255, 15464), (1933, 10040), (2008, 9665), (2510, 7732), (3866, 5020)]