19408840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44111}}^1$

素因数の和:44133

約数の個数: 32

約数和(自身を含む): 47640960

約数和(自身を除く): 28232120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44111, 88222, 176444, 220555, 352888, 441110, 485221, 882220, 970442, 1764440, 1940884, 2426105, 3881768, 4852210, 9704420, 19408840]

約数ペア:

[(1, 19408840), (2, 9704420), (4, 4852210), (5, 3881768), (8, 2426105), (10, 1940884), (11, 1764440), (20, 970442), (22, 882220), (40, 485221), (44, 441110), (55, 352888), (88, 220555), (110, 176444), (220, 88222), (440, 44111)]