20008615

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{467}}^1$

素因数の和:543

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 8296025

約数列:

[1, 5, 11, 19, 41, 55, 95, 205, 209, 451, 467, 779, 1045, 2255, 2335, 3895, 5137, 8569, 8873, 19147, 25685, 42845, 44365, 95735, 97603, 210617, 363793, 488015, 1053085, 1818965, 4001723, 20008615]

約数ペア:

[(1, 20008615), (5, 4001723), (11, 1818965), (19, 1053085), (41, 488015), (55, 363793), (95, 210617), (205, 97603), (209, 95735), (451, 44365), (467, 42845), (779, 25685), (1045, 19147), (2255, 8873), (2335, 8569), (3895, 5137)]