28063475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 13183885

約数列:

[1, 5, 11, 19, 25, 41, 55, 95, 131, 205, 209, 275, 451, 475, 655, 779, 1025, 1045, 1441, 2255, 2489, 3275, 3895, 5225, 5371, 7205, 8569, 11275, 12445, 19475, 26855, 27379, 36025, 42845, 59081, 62225, 102049, 134275, 136895, 214225, 295405, 510245, 684475, 1122539, 1477025, 2551225, 5612695, 28063475]

約数ペア:

[(1, 28063475), (5, 5612695), (11, 2551225), (19, 1477025), (25, 1122539), (41, 684475), (55, 510245), (95, 295405), (131, 214225), (205, 136895), (209, 134275), (275, 102049), (451, 62225), (475, 59081), (655, 42845), (779, 36025), (1025, 27379), (1045, 26855), (1441, 19475), (2255, 12445), (2489, 11275), (3275, 8569), (3895, 7205), (5225, 5371)]