81531604

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2729}}^1$

素因数の和:2848

約数の個数: 48

約数和(自身を含む): 179786880

約数和(自身を除く): 98255276

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 97, 154, 194, 308, 388, 679, 1067, 1358, 2134, 2716, 2729, 4268, 5458, 7469, 10916, 14938, 19103, 29876, 30019, 38206, 60038, 76412, 120076, 210133, 264713, 420266, 529426, 840532, 1058852, 1852991, 2911843, 3705982, 5823686, 7411964, 11647372, 20382901, 40765802, 81531604]

約数ペア:

[(1, 81531604), (2, 40765802), (4, 20382901), (7, 11647372), (11, 7411964), (14, 5823686), (22, 3705982), (28, 2911843), (44, 1852991), (77, 1058852), (97, 840532), (154, 529426), (194, 420266), (308, 264713), (388, 210133), (679, 120076), (1067, 76412), (1358, 60038), (2134, 38206), (2716, 30019), (2729, 29876), (4268, 19103), (5458, 14938), (7469, 10916)]