81678245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1663}}^1$

素因数の和:1745

約数の個数: 32

約数和(自身を含む): 115015680

約数和(自身を除く): 33337435

約数列:

[1, 5, 11, 19, 47, 55, 95, 209, 235, 517, 893, 1045, 1663, 2585, 4465, 8315, 9823, 18293, 31597, 49115, 78161, 91465, 157985, 347567, 390805, 859771, 1485059, 1737835, 4298855, 7425295, 16335649, 81678245]

約数ペア:

[(1, 81678245), (5, 16335649), (11, 7425295), (19, 4298855), (47, 1737835), (55, 1485059), (95, 859771), (209, 390805), (235, 347567), (517, 157985), (893, 91465), (1045, 78161), (1663, 49115), (2585, 31597), (4465, 18293), (8315, 9823)]