20304635

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 28365120

約数和(自身を除く): 8060485

約数列:

[1, 5, 13, 19, 41, 65, 95, 205, 247, 401, 533, 779, 1235, 2005, 2665, 3895, 5213, 7619, 10127, 16441, 26065, 38095, 50635, 82205, 99047, 213733, 312379, 495235, 1068665, 1561895, 4060927, 20304635]

約数ペア:

[(1, 20304635), (5, 4060927), (13, 1561895), (19, 1068665), (41, 495235), (65, 312379), (95, 213733), (205, 99047), (247, 82205), (401, 50635), (533, 38095), (779, 26065), (1235, 16441), (2005, 10127), (2665, 7619), (3895, 5213)]