20451196

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1259}}^1$

素因数の和:1425

約数の個数: 24

約数和(自身を含む): 37255680

約数和(自身を除く): 16804484

約数列:

[1, 2, 4, 31, 62, 124, 131, 262, 524, 1259, 2518, 4061, 5036, 8122, 16244, 39029, 78058, 156116, 164929, 329858, 659716, 5112799, 10225598, 20451196]

約数ペア:

[(1, 20451196), (2, 10225598), (4, 5112799), (31, 659716), (62, 329858), (124, 164929), (131, 156116), (262, 78058), (524, 39029), (1259, 16244), (2518, 8122), (4061, 5036)]