20880475

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10847}}^1$

素因数の和:10875

約数の個数: 24

約数和(自身を含む): 32283648

約数和(自身を除く): 11403173

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 10847, 54235, 75929, 119317, 271175, 379645, 596585, 835219, 1898225, 2982925, 4176095, 20880475]

約数ペア:

[(1, 20880475), (5, 4176095), (7, 2982925), (11, 1898225), (25, 835219), (35, 596585), (55, 379645), (77, 271175), (175, 119317), (275, 75929), (385, 54235), (1925, 10847)]