25578916

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{1289}}^1$

素因数の和:1356

約数の個数: 36

約数和(自身を含む): 50441580

約数和(自身を除く): 24862664

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 121, 164, 242, 451, 484, 902, 1289, 1804, 2578, 4961, 5156, 9922, 14179, 19844, 28358, 52849, 56716, 105698, 155969, 211396, 311938, 581339, 623876, 1162678, 2325356, 6394729, 12789458, 25578916]

約数ペア:

[(1, 25578916), (2, 12789458), (4, 6394729), (11, 2325356), (22, 1162678), (41, 623876), (44, 581339), (82, 311938), (121, 211396), (164, 155969), (242, 105698), (451, 56716), (484, 52849), (902, 28358), (1289, 19844), (1804, 14179), (2578, 9922), (4961, 5156)]