20644525

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1831}}^1$

素因数の和:1893

約数の個数: 24

約数和(自身を含む): 28623168

約数和(自身を除く): 7978643

約数列:

[1, 5, 11, 25, 41, 55, 205, 275, 451, 1025, 1831, 2255, 9155, 11275, 20141, 45775, 75071, 100705, 375355, 503525, 825781, 1876775, 4128905, 20644525]

約数ペア:

[(1, 20644525), (5, 4128905), (11, 1876775), (25, 825781), (41, 503525), (55, 375355), (205, 100705), (275, 75071), (451, 45775), (1025, 20141), (1831, 11275), (2255, 9155)]