25921225

素因数分解:

$5^2\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:103

約数の個数: 48

約数和(自身を含む): 38122560

約数和(自身を除く): 12201335

約数列:

[1, 5, 11, 19, 25, 41, 55, 95, 121, 205, 209, 275, 451, 475, 605, 779, 1025, 1045, 1331, 2255, 2299, 3025, 3895, 4961, 5225, 6655, 8569, 11275, 11495, 19475, 24805, 25289, 33275, 42845, 54571, 57475, 94259, 124025, 126445, 214225, 272855, 471295, 632225, 1036849, 1364275, 2356475, 5184245, 25921225]

約数ペア:

[(1, 25921225), (5, 5184245), (11, 2356475), (19, 1364275), (25, 1036849), (41, 632225), (55, 471295), (95, 272855), (121, 214225), (205, 126445), (209, 124025), (275, 94259), (451, 57475), (475, 54571), (605, 42845), (779, 33275), (1025, 25289), (1045, 24805), (1331, 19475), (2255, 11495), (2299, 11275), (3025, 8569), (3895, 6655), (4961, 5225)]