81696998

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{307}}^1$

素因数の和:524

約数の個数: 32

約数和(自身を含む): 133056000

約数和(自身を除く): 51359002

約数列:

[1, 2, 19, 38, 47, 94, 149, 298, 307, 614, 893, 1786, 2831, 5662, 5833, 7003, 11666, 14006, 14429, 28858, 45743, 91486, 133057, 266114, 274151, 548302, 869117, 1738234, 2149921, 4299842, 40848499, 81696998]

約数ペア:

[(1, 81696998), (2, 40848499), (19, 4299842), (38, 2149921), (47, 1738234), (94, 869117), (149, 548302), (298, 274151), (307, 266114), (614, 133057), (893, 91486), (1786, 45743), (2831, 28858), (5662, 14429), (5833, 14006), (7003, 11666)]